Does Advertising Truly Represent the LGBTQ+ Community? An Analysis of Intersectionality and Consumer Responses to LGBTQ+ Advertising
subject: LGBTQ+ advertising, prosocial advertising, intersectionality, consumer attitudes
description: Depictions of sexual and gender minorities in advertising are becoming increasingly common and diverse. Yet, numerous intersections within these portrayals are still invisible. Previous research has found mixed results regarding consumer responses to LGBTQ+ identities in advertising. The current study aimed to obtain a further understanding into how a diverse range of consumers respond to heteronormative versus LGBTQ+ imagery in ads. This was assessed using semi-structured interviews to examine sexual and gender minority consumer (n = 13) and non-LGBTQ+ consumer (n = 6) reactions to three distinct IKEA ads. In addition to this, LGBTQ+ character depictions in 286 worldwide mainstream ads from 2016-2020 were analysed for measures of intersectionality across the dimensions of race, age and specific LGBTQ+ membership, extending the previous findings of Nölke (2018). Results indicated that non-LGBTQ+ participants showed similar responses and subsequent brand evaluation regardless of ad theme. Sexual and gender minority participants were found to show preference towards the ad featuring LGBTQ+ identities, though were often found to be sceptical of such portrayals. Intersectionality analysis uncovered that 47 out of a possible 96 intersections were completely invisible from 2016-2020, although representation of minorities within the community has increased substantially since the original findings. Results demonstrate the importance of character depictions in advertising, highlighting why intersectionality of such portrayals needs to increase in the future. Findings further denote how and why different consumers react to specific ad imagery, making recommendations to marketers regarding their inclusion of LGBTQ+ identities in advertising.
creator: Layton Edgington
source: Participants The sample consisted of 19 participants aged between 18-53 at their time of interview; Mage = 23.5 years, SDage = 7.6. Of this sample, 13 participants stated that they identified as LGBTQ+ (2 White lesbian females, 1 Mixed-Race lesbian female, 2 White gay males, 1 Asian gay male, 2 White bisexual females, 1 Black bisexual female, 1 Asian bisexual male, 1 White transgender female, 1 White transgender male and 1 White transgender non-binary individual). A further 6 participants stated that they did not identify as LGBTQ+ (3 White males and 3 White females). Participants were recruited in a purposive manner through social media sites such as Instagram and WhatsApp and comprised mainly of acquaintances of the researcher. A high proportion of LGBTQ+ participants were utilised in an effort to ensure intersectionality of responses, which has been shown to provide a strong methodological framework within which to investigate underrepresented groups (Rodriguez, 2018). Design The study consisted of two distinct elements; semi-structured interviews and a content analysis of existing global advertisements that feature LGBTQ+ characters from 2016-2020. Semi-structured interviews were the chosen method of qualitative data gathering, as the style allows for analysis according to the basis of grounded theory (Glaser & Strauss, 1967) and gives scope for probing questions to supplement the richness of answers given. The combination of quantitative (quantified content analysis) and qualitative research employed in the study through separate investigations was undertaken in attempt to provide a rigorous understanding of LGBTQ+ diversity in advertising and its effects upon observers. Interviews All participants individually took part in an in-depth semi-structured interview with the researcher over Microsoft Teams. Due to the inductive nature of the exploration, no independent and dependent variables were implemented. The research broadly assessed the following measures acr…
publisher: Lancaster University
date: September 2021
contributor: Layton Edgington
rights: Open
relation: Qualitative analysis has no relation. Content analysis extends the work of Nölke (2018). Nölke, A. I. (2018). Making diversity conform? An intersectional, longitudinal analysis of LGBT-specific mainstream media advertisements. Journal of Homosexuality, 65(2), 224-255.
format: Data/Excel.csv Text/Nvivo
language: English
type: Data and text
coverage: LA1 4YF

Understanding the Role of Academic Self-Efficacy, Social Support, and Anxiety in University Students’ Academic Resilience
subject: academic reselience, self-efficacy, social support, anxiety, university students, multiple linear regression
description: Academic resilience can refer to a student’s response when they are faced with academic hinderances, such as lower than expected grades. Those with a high ability to bounce back from hinderances have previously been shown to perform well during exams and have more positive mental health outcomes. Whilst a number of research studies have attempted to explain the academic resilience of primary and secondary school students, the factors that underpin university students’ academic resilience remain unclear. Therefore, the present study attempts to investigate the extent to which both protective and risk factors underpin university students’ academic resilience. The variables explored include academic self-efficacy; social support; and anxiety. Participants (N = 246) were all university students in the United Kingdom and they completed four self-report measures online via Qualtrics. In line with the hypotheses, a series of zero-order correlations showed a negative association between anxiety and academic resilience, while both academic self-efficacy and social support positively correlated with academic resilience. A multiple linear regression showed that the three predictor variables significantly predicted academic resilience and accounted for 41% of the variance. The findings lend support to a number of other recent studies that have explored characteristics of students’ resilience. Furthermore, the current study applied a context-specific resilience and despite the use of just three predictor variables, the most variance was explained in the present study. Whilst the study does have useful directions for both educators and future research, the use of self-report scales to measure a range of psychological concepts, that individuals tend to see themselves in a favourable manner in, does limit the study’s validity.
creator: Regan Kelly
source: Method Participants The sample consisted of 246 participants who were all students at universities in the U.K. After the exclusion of incomplete responses (N = 5); invalid responses to demographic questions (N = 1); and invalid ratings on scales (N = 7), the final sample consisted of 233 participants. There was 165 females and 68 males with ages ranging from 17 to 52 and the mean age was 24.3 years (SD = 4.8). Participants were primarily recruited through Facebook dissertation exchange groups and online participant recruiting software SONA was also used, thus a simple random sample was employed. To ensure the desired number of participants was reached, the chance to opt-in to a raffle draw for five £10 Amazon vouchers was offered to participants. Measures Academic Resilience. Consisting of 30 items and a five-point Likert scale ranging from 1 (strongly agree) to 5 (strongly disagree), the Academic Resilience Scale (ARS-30; Cassidy, 2016) was used to measure academic resilience. On this measure, individuals read a short vignette and were asked to imagine themselves in the situation described. The vignette details how a student has recently received a number of poor grades and one fail and has subsequently received critical feedback. The items are presented as statements and these are grouped into three sub-scales (i.e., perseverance, reflecting and adaptive help-seeking, and negative affect), and consist of both positively (e.g., I would try to think of new solutions) and negatively phrased statements (e.g., I would just give up). A summed score of the three sub-scales was used as a measure of academic resilience in the present study and the scores can range from 30 to 150, with a high score reflecting a highly academically resilient individual. Academic Self-Efficacy. Owen and Froman’s (1988) College Academic Self-Efficacy Scale (CASES) was used to measure academic self-efficacy. This measure comprises of 33 items and individuals used a five-point Likert scale, rang…
publisher: Lancaster University
date: 2020
contributor: Aimee Fletcher Eleni Gkari
rights: Open
relation: None
format: RK Dissertation_August 8, 2020_07.57 inc. res reversed.csv
language: English
type: Data
coverage: LA14YF

An Exploratory Analysis of Cortical Hyperexcitability, Anxious Tendencies, and Sleep
subject: Cortical hyperexcitability, Anxiety, Problematic Sleep
description: Cortical hyperexcitability reflects abnormal or aberrant neural processes and has been associated with visual distortions, discomfort, and hallucinations. Abnormal visual behaviors have previously been found to exist within non-clinical populations. The present study explored the previously implied relationship between anxiety, sleep patterns, and cortical hyperexcitability. Three inventories were used to gather data; the General Anxiety Disorder inventory (GAD-7; Löwe et al., 2008) measured anxiety, the Pittsburgh Sleep Quality Index (PSQI: Buysse, Reynolds, Monk, Berman, & Kupfer, 1989) measured problematic sleep behaviors, and the Cortical Hyperexcitability index version two (CHi-II; Braithwaite, Marchant, Takahashi, Dewe, & Watson, 2015; Fong, Takahashi, & Braithwaite, 2019) measured cortical hyperexcitability, which is composed of three separate dimensions, or ‘factors’. In order to analyse the three factors, this study utilised three separate multiple regression models (n = 97), and a correlation analysis was used to analyse the relationship between anxiety symptoms and problematic sleep behaviors. Some significant results were found in support of the relationship between anxiety and cortical hyperexcitability. No significant results were found for the relationship between sleep and cortical hyperexcitability. A significant correlation analysis found that there is a significant positive relationship between anxiety and sleep. Collectively, these findings provide additional external validation for the CHi-II as an indirect proxy measure for symptoms of cortical hyperexcitability.
creator: Logan R Caola
source: Participants Due to the ongoing pandemic, 34 participants were gathered from Lancaster University student-based Facebook groups. This was an attempt to gather students in a similar manner to common recruitment without the use of in-person interaction. In addition to the gathered 34, 63 additional participants were used from previously collected data, gathered in-person also from Lancaster University students. Overall, 97 participants were gathered for this study. The mean age of participants was 21 (age range 18-33 years), of which 65 (67%) were female. Informed consent was obtained from all participants. Materials Due to the remote nature of the study, each of the surveys used was a digital variant made on Qualtrics. The Cortical Hyperexcitability II (CHi-II) is one of the first verified measures of cortical hyperexcitability. The CHi-II consists of 30 items and takes 20 to 25 minutes to complete. Each item focuses on a specific experience followed by two 7-point Likert scales, to measure participant’s frequency and intensity of each experience (Fong et al., 2019). The CHi-II can be broken down into three separate factors. Factor one, “Heightened Visual Sensitivity and Discomfort”, which consists of 11 items. Factor two, “Aura-Like Visual Hallucinatory Experiences”, which consists of nine items. Factor three, “Distorted Visual Perception,” which consists of six items (see Fong et al., 2019). For each of the three factors, intensity and frequency scores were added for a global score of each factor, for each participant. These global factor scores were then divided by the number of items in each factor, respectively, to provide an average for each participant for each factor. There are four items that are not part of any factor. Although these items were recorded in data collection, they are not used in this analysis. The General Anxiety Disorder assessment (GAD-7) measures anxious tendencies and has been established as conceptually valid and reliable in measuring an…
date: September 8th, 2020
rights: N/A
format: Excel Workbook “.xlsx” file
language: English
type: Data

The Impact of Sleep Patterns on Emotion Regulation in Taiwanese Adolescents
subject: sleep patterns, circadian types, morningness-eveningness, on/off-peak time, emotion regulation, cognitive control, adolescents
description: Emotion regulation has been shown in a number of studies to be related to sleep, which often suggested that good sleep quality leads to better emotion regulation. However, research which has empirically documented the link between individuals’ specific sleep patterns/circadian types and emotion regulation among adolescents is scant. Therefore, the aim of this study attempts to explore whether there is an interaction between circadian types and the corresponding peak time on emotion regulation. Participants were 204 boys and 148 girls, who were from 13 to 16 years of age. The present study involved three questionnaires and two modified emotional Stroop tasks, including Facial-Emotional Stroop task and Lexical-Emotional Stroop task, as the assessment of emotion regulation. The analysis of the questionnaires and experiments was conducted through a series of multivariate ANOVA analyses in order to indicate whether there is a main effect of two independent variables or interactions on two emotion regulation. The results showed three main findings. Firstly, ‘morning people’ committed more error on facial tasks than ‘evening people’. Secondly, participants who attended the tasks in the afternoon had faster reaction times on Lexical task than who were tested in the morning. Thirdly, the interaction between circadian types and the corresponding peak time only showed in the evening group. To sum up, this study might be of importance in explaining the relationship between sleep patterns and emotion regulation in adolescents. Nevertheless, further studies for adolescents in investigating circadian types in relation to emotion regulation are needed.
creator: Jhih-Ying, Chen
source: Materials Each participant was asked to complete three online questionnaires about sleep and mood as well as two experimental tasks about emotion regulation. Three questionnaires had been translated into a Chinese version and inspected by a native Chinese-speaking professor in the Department of Psychology at Lancaster University. Sleep Measures. Circadian Types Questionnaire. Participants were given a Morningness-Eveningness Questionnaire (MEQ) (Horne & Östberg, 1976) to assess when their biological clock can achieve peak alertness, which indicates the better timing for people to behave more efficiently in their work and cognitive, behavioural and emotional functioning (see Appendix A). Three groups were be categorized based on the MEQ score: score > 58 for the morning type, 42 < score < 58 for the Intermediate type and score < 42 for the evening type. Sleep Quality Questionnaire. To assess whether participants have sleep dysfunction, participants were also asked to fill out the Pittsburgh Sleep Quality Index (PSQI) (Buysse, Reynolds, Monk, Berman & Kupfer, 1989), which elicited information concerning their sleep quality (see Appendix B). The higher score the participants gain, the poorer sleep quality they have. This score can be used to examine whether people's sleep quality can influence their emotion regulation ability. Mood Measurements. Emotional Problems Questionnaire. Participants needed to fill out the Depression Anxiety Stress Scale-21 (DASS-21) (Antony, Bieling, Cox, Enns & Swinson, 1998), which is a self-reported measure to record their mood during over one recent week (see Appendix C). There were three dimensions of negative mood in this questionnaire, including depression, anxiety and stress. Each dimension had an independent score, with a higher score indicating more emotional problems. In this study, three sub-scores were added together to produce a composite measure of emotional difficulties. Emotion Regulation. In addition to the questionnaires, pa…
publisher: Lancaster University
date: 2018
contributor: Rebecca James
rights: None
relation: None
format: Data/SPSS.sav
language: English
type: Data
coverage: LA1 4YF

The Construction of Female Sexual Agency in Contemporary Advertising: Empowerment or Objectification?
subject: media, advertising, psychology, sociology, psycho-social, sexualisation, objectification, empowerment, sexual empowerment gender, me too, feminism, post feminism, neoliberalism
description: Building on the work of Gill (2008) on postfeminist female gender representation in advertising, more specifically the shift from representing women as sexual objects to representing women as active sexual subjects, this work presents an exploration of young adults’ constructions and depictions of contemporary sexualised representations of women; of whether the new construction of female sexual agency is seen as empowering as opposed to objectifying. Furthermore, this analysis is concerned with the susceptibility of young audiences to advertising’s attempts to integrate neoliberal/postfeminist ideas in their communication strategies. A tangent question to this research is an exploration of contemporary audiences’ awareness of recent movements against sexual harassment (MeToo); of potential implications these may have in the construction of the new femininity. The study consisted of both same-sex (male, female) focus groups and mixed-gender focus groups in order to ensure complementarity of insights. Findings suggest thatthere is no simple negotiation between empowerment and objectification. Female sexual agency cannot be denied, nor can women be understood as completely free agents, living independent of any external influence or constraint. Female empowerment in advertising must not limit female gender representation/empowerment to women’s sexuality and should distance itself from its constant rapport with the male as female empowerment, also femininity, must be understood and represented much more broadly.
creator: Irina Teodora Marculescu
source: advertising must not limit female gender representation/empowerment to women’s sexuality and should distance itself from its constant rapport with the male as female empowerment, also femininity, must be understood and represented much more broadly. Methods Section:This study investigates the construction of female sexual agency in advertising. More specifically, it contributes to existing feminist post-structuralist literature, critique and debates around representations of gender in media culture as it explores young adults’ perceptions of female gender representations in advertisements that depict women sexually. Research DesignA phenomenological approach was adopted in this research as participants were invited to express their views on specific advertising stimuli, to discover and ascribe meaning to cultural depictions of female sexuality. Focus groups were conducted with five (male), six (mixed) and seven (female) participants who engaged in a semi-structured discussion. Participants expressed their thoughts in relation to the topic of research as consisting of various pre-established themes. SamplingThe sample consisted of 18 participants of which nine were females and nine were males. All participants identify as undergraduate or postgraduate students at Lancaster University, aged 20-27 years old. Participants were recruited through convenience sampling. Despite being current residents of Lancaster, they originate from different countries (England, Bulgaria, Lithuania, U.S., China, France, Andorra, and Greece). Research ProceduresMaterialsParticipants were provided with an information sheet and consent form before the focus group. The information sheet provided participants with information about the study, the scope of research, their confidentiality and anonymity, and also the opportunityto further enquire about the study. Focus groups discussion were recorded via Iphone Voice Memo recorder. The recordings were removed from the researcher’s Iphone and stor…
publisher: Lancaster University
date: 2015
contributor: Rebecca James
rights: Open
relation: None
format: No data provided
language: English
type: No data provided
coverage: LA1 4YF

The Relationship Between Perspective-taking, Lie Detection and Self-construal Among Taiwanese
subject: None
description: “Theory of Mind” (ToM) refers to an ability, which allows us to understand what other people may believe, think, know, feel. Also, ToM is considered to play an essential role in social interaction. Evidence suggests that improved ability to understand others’ mental states through training can also improve our ability to generate lies and understand what kind of situations people may lie. In addition, previous studies point that there are differences in lie-telling and perspective-taking between individualistic and collectivist cultures. Therefore, the current study aimed to investigate whether there is a relationship between the perspective-taking, lie detection and self-construal (individualism and collectivism). Data were collected from 40 typically developed adults in Taiwan (M = 23.98, SD = 2.99). Each participant was asked to complete three computer-based tasks, namely a perspective-taking task; a lie detection task, and a questionnaire of Auckland Individualism and Collectivism scale (AICS). The result showed that there is no relationship between the ability of perspective-taking and lie detection. Also, the people scored higher individualism will show better performance on pointing out truths, but worse on detecting lies. It might relate to the “truth bias”, which means that people will typically assume or believe others are telling truths rather than lies, especially distinguishing on individualists. However, because cultural effects such as language differences and self-construal might affect individuals’ performances on instances of ToM use, the current study suggests that people might need to use different cues to detect lies in a truth-versus-lie judgment between different cultures.
creator: Wen-Hsuan (Macy) Su
source: Participants Data were collected from 40 typically developing adults from an opportunity sample in Taiwan. The entire group was composed of 20 males and 20 females between the ages of 18 and 30 (M = 23.98, SD = 2.99). All participants stated that they were Taiwanese, speaking Chinese/Taiwanese Mandarin as their first language, with normal vision or vision which had been corrected to normal. All of the participants had not been diagnosed with any neurological or developmental disorders. The data of participant No.40 was excluded from analyses because the participant only responded with the same positive answer to each question in the lie detection task. The original minimum required sample size was 44, which was determined a priori by using G*Power software. This number was calculated based on assuming a medium effect size of 0.4 and a reasonable power of 0.8. However, 40 was considered as a more suitable sample size, as the experiment consisted of two orders for the perspective-taking task, four sub-sets of the lie detection task and a questionnaire. In order to counterbalance stimuli presentation, the target sample was set to 40, as it is a multiple of eight (two times four times one); it is also the closest number to 44. All participants had been given the consent form and the information sheet to understand the contents of the project before the tests began. Furthermore, this project was approved by the ethics process from the Department of Psychology at Lancaster University. Design and Procedure Each participant was asked to complete three computer-based tasks, namely, the perspective taking task, the lie detection task, and a questionnaire of the Auckland Individualism and Collectivism Scale (AICS). All of the tasks were translated or designed in the participants’ first language, in this case, Chinese/Taiwanese Mandarin. All of the tasks were presented on a laptop and participants responded by using the computer mouse. The full session took around an hour in to…
publisher: Lancaster University
date: 2018
contributor: Rebecca James
rights: Open
relation: None
format: Data/Excel.xslx
language: English
type: Data
coverage: LA1 4YF

An Investigation into the Effects of Temporary Visual Deprivation on Cortical Hyperexcitability, and Links with Multisensory Integration
subject: Cortical hyperexcitability, pattern glare, sensory hallucinations, temporary visual deprivation, migraine with aura
description: Cortical hyperexcitability is a state of highly increased neuronal activity in the brain. The current research is a novel investigation into the effects of short term temporary visual deprivation on cortical hyperexcitability and resultant aberrant visual experiences in non-migraineurs, migraine with aura, and migraine only participants. This research also assesses the link between cortical hyperexcitability and its effects on aberrant experiences across all senses; vision, audition, gustation, olfaction, and bodily sensations. Forty-three participants, including three migraine aura sufferers and three migraine only sufferers, completed the pattern glare test to induce and measure state-based cortical hyperexcitability under normal and temporary visual deprivation conditions, along with two questionnaire measures; the Cortical Hyperexcitability Index (version II; CHi-II), measuring trait-based cortical hyperexcitability; and the Multi-Modality Unusual Sensory Experiences Questionnaire, assessing aberrant experiences across senses. Results indicated no effect of temporary visual deprivation on cortical hyperexcitability, although migraine aura participants reported higher cortical hyperexcitability levels overall compared to migraine only and non-migraineurs. State-based pattern glare was not associated with unusual experiences in senses aside from olfactory, however the trait-based CHi-II was strongly correlated with unusual auditory, gustatory, and bodily sensations. Potential methodological and theoretical reasons for these results are discussed, alongside improvements and new directions for future research.
creator: Abbie Cochrane
source: Participants Forty-three participants took part in this study, consisting of 28 females and 15 males. All participants were students at Lancaster University with a mean age of 22.5 years, ranging from 19 to 36 years (SD=2.92, SE=0.45). Twenty-two participants were native English speakers, and 21 spoke English as their second language. Of these participants, three self-reported suffering with migraine only (MO) and three with migraine with aura (MA). Participants were recruited using opportunity sampling, and all gave fully informed consent before completing the experiment. Prior to participation, all participants were screened to ensure they did not suffer with any form of epilepsy, seizures of an unknown origin, and that they had not recently undergone brain or eye surgery. As no subjects reported these experiences, no participants were excluded on this basis. One participant reported suffering with micropsia; a visual impairment causing distortion of object size, so was removed from future analyses. All remaining participants reported normal or corrected to normal vision (i.e. through aid of glasses or contact lenses). Two participants were later removed from analysis for unusual scores on the baseline pattern glare task measure, explained in the results section. As such, the final sample size was 40 (age: M=22.53, SD=3.02, SE=0.48). Materials and Procedure Pattern glare task. Participants completed the pattern glare task under two conditions; blindfold or non-blindfold, creating a within-subjects design. Half completed the blindfold condition first, followed by the non-blindfold condition, with the other half completing the non-blindfold condition followed by the blindfold condition. The pattern glare task utilised three black and white striped grating patterns. The low frequency grating, calculated to have a spatial frequency of 0.5 cycles per degree (cpd; Figure 1), and the high frequency grating of 5.8cpd (Figure 2) acted as baseline measures. The medium frequ…
publisher: Lancaster University
date: 2018
contributor: Rebecca James
rights: Open
relation: None
format: Data/Excel.xlsx
language: English
type: Data
coverage: LA1 4YF

School Dropout in Developing Countries: The Case of Indigenous Communities in Guatemala
subject: Qualitative Semi-structured interviews Thematic Analyses
description: Education is a basic right which any person should have the opportunity to access. However, around 120 million children worldwide are as yet uneducated. A qualitative study was conducted in an indigenous community in rural Guatemala in order to identify the key factors that discourage students to continue from primary to secondary school education. The participants of the study were divided into two groups depending on whether they were students, parents of students or teachers at the rural school. Results suggested that factors of different natures (structural, political and cultural) overlap each other. The factors related to school dropout were related to demography, health, lack of economic resources and Government support, lack of social support and lack of intrinsic motivation to graduate from formal education. In contrast, protection factors to remain at school were related to future aspirations and social mobility, parental support and economic support.
creator: Patricia Gómez-Luengo
source: Data Collection Data was collected using qualitative, semi-structured interviews to facilitate the discovery of new conceptual and theoretical knowledge (Power & Alison, 2017) about the factors that take place in the process regarding the decision of remaining or disengaging from education. This method has been used regularly by researchers who seek to generate an understanding of real-world psychology (Crandall, Klein, & Hoffman, 2006; Klein & Militello, 2004). The interview sought to achieve a better understanding of the reality that the people interviewed are living through analysing their personal experience. The researcher who conducted these interviews spent 2 weeks prior to data collection immersing herself in the work environment of the school in the rural area of Guatemala, reading previous literature on the topic, attending school and classes with the children and interacting with teachers, students and families in order to establish a working relationship with each group. Procedure Each interview lasted approximately half an hour, depending on the participants will, in order to prevent participant exhaustion (M = 35). The interview stopped if the participant was perceived to be uncomfortable. Participants were sat in a quiet location and interviewed on a mobile phone. Interviews were semi-structured and included topics such as the characteristic of the educational system, the practices and processes that appear as determinants of the decision for permanently remaining or disengaging from the formal educational process, and personal situations or of the people that the participants knew. Interviews were transferred to a computer and anonymously transcribed, with all identifiable details (e.g., names, locations) removed, for its analysis. Thematic analysis was conducted in order to understand the subjective experience of the participants as the paramount object of the study throughout the organization and reach description of the data set. Data Analyses Ana…
publisher: Lancaster University
date: 2017
contributor: John Towse
rights: Open
relation: None
format: text/NVivo
language: English
type: Text (speech)
coverage: LA1 4YF

Perception of sounds sequences: predictions for behavioural measurements generated with a computational model of auditory cortex
subject: Cartesian state space difference calculations
description: Behavioural and neuroscientific research into sound perception shows that our auditory system is able to represent the temporal structure of sounds over a wide range of time windows – a process labelled as temporal binding. Recent computational modelling work suggests that synaptic depression in auditory cortex, responsible for adaptation of neural responses to repeated stimuli, is also the memory mechanism which allows for temporal structure of sounds to be represented. This project aimed to generate behavioural predictions of this explanation of temporal binding. Simulations examined how the cortex is able to discriminate between sound sequences differing from each other in terms of the timing, amplitude, and frequency of the sequence elements. Along with the temporal length of the sequences, the lifetime of neural adaptation was manipulated. The results predict that the thresholds for discriminating sound sequences should be tuned to a given sequence duration. These findings are discussed in light of the previous research on how the dynamics and anatomical structures within the auditory cortex may facilitate neural adaptation.
creator: Zsofia Belteki
source: The current project investigated the processing of sound sequences by applying a computational model of the auditory cortex described in more detail in the study by May and Tiitinen (2013). The coding of the experiment, including stimulus design and experimental design, along with data analysis all took place in MATLAB. Model structure and dynamics Structure. The model is made up of 14 brain areas, with 13 cortical areas that include three core, eight belt and two parabelt areas of the auditory cortex, and one sub-cortical area simulating the thalamus. Each area is made up of 16 computational units representing cortical columns, with each column comprising one excitatory (pyramidal) and one inhibitory population of neurons. Altogether, this meant that there are 224 columns within the model. There are three levels of structural connections, namely interaction within columns, interaction between columns and interactions between the different cortical areas. Structural connections are expressed through connection matrices that describe synaptic connections between the excitatory populations (Wee), from inhibitory to excitatory populations (Wei), and from excitatory to inhibitory populations (Wie). Intra-column connections are assumed to be the strongest, with the synaptic weight for the within-column excitatory feedback (i.e., the diagonal values of Wee ) being set to 6, and the within-column weight values of Wei and Wie (inter-neuron connections targeting excitatory and inhibitory cells respectively) being set to 3.5. The excitatory population of each column made lateral connections to the excitatory populations of neighboring columns within the area. These connections extended to a distance of two columns on either side. Similarly, the excitatory population connected to neighboring inhibitory populations across a distance of five columns, with these connections accounting for lateral inhibition (see Figure 1). In both cases, there was a Gaussian drop off of the weigh…
publisher: Lancaster University
date: 2015
contributor: Ellie Ball
rights: Open
relation: None
format: Data/MATLAB
language: English
type: Data
coverage: LA1 4YF

The Effect of Ambient Temperature on Cognitive Processing
subject: Ambient temperature Cognitive reflection Syllogistic reasoning Logistic mixed effects modelling.
description: Over recent decades, climate change has caused the world to get warmer and this trend is set to continue into the future. Relationships between increased temperature and changes in human behaviour, such as increased aggression, have been identified and it is therefore important to consider the impact it may have on other aspects of behaviour. At present, there are limited amounts of research on the effect of temperature on cognitive performance. Within the framework of dual-process theories of cognition and using a Cognitive Reflection Task (CRT) and a Syllogisms Task, the current report researches whether increased ambient temperature (artificially manipulated in a temperature lab) encourages the use of System 1 (i.e. fast, unconscious) processing as opposed to System 2 (i.e. slow, deliberate) processing. The paper asks whether increased temperature leads to more heuristic answers on the CRT and more belief bias on the Syllogisms task. We observed no effect of temperature on performance on the CRT or the Syllogisms task. Similarly, we observed no effect of ambient temperature on belief bias or confidence in answers to the Syllogisms task. However, an effect of ambient temperature was found on how many heuristic responses were given to the CRT, with those in the cold condition giving more heuristic answers than those in the hot condition. We conclude that these findings do not provide support for increased temperature impairing certain aspects of cognitive performance, but also explore unexpected results and discuss potential reasons for these
creator: Nicola Cook
source: Participants 65 individuals participated in this research study. Three were excluded for not meeting the pre-decided eligibility criteria of being a native English speaker aged between 18 and 65. This left 62 participants, 19 male and 43 female (Mage = 25.29 SDage = 8.83). Prior to the study, 1.61% had attained a PhD, 9.68% a Master’s degree, 40.32% a Bachelor’s degree, 33.87% A-Levels, 3.23% GSCEs, 9.68% a Certificate or Diploma and 1.61% had no qualifications. All participants completed the whole study, and none indicated awareness of the true aims of the study, thus, following pre-agreed exclusion criteria all participants were retained for analysis. Materials Cognitive Reflection Task. To test participants’ cognitive reflection, a form of the CRT (Frederick, 2005) was utilised. The CRT consists of a series of problem solving questions, with four multiple choice answers. For example, the question, ‘A bat and a ball cost £1.10 in total. The bat costs £1.00 more than the ball. How much does the ball cost?’ is presented alongside the following four options; ‘10p’, ‘5p’, ‘15p’ and ‘90p’. In this case the gut instinct is usually to respond with ‘10p’ however this is incorrect, and the correct response is, ‘5p’. Frederick’s (2005) original version of the task only consisted of three items and has since been criticised for being too short; about 44% of participants who are given the task have previously seen the questions and this leads to the inflation of their scores on subsequent testing sessions (Stieger & Reips, 2016). Consequently, both Primi, Morsanyi, Chiesi, Donati and Hamilton (2016) and Travers, Rolison and Feeney (2016) have since developed longer versions of the tasks; Primi et al.’s (2016) consisted of 6 items, whilst Travers, Rolison and Feeney’s (2016) consisted of 8. The present study combined items from both papers, taking 6 critical items from Primi et al. (2016) and 4 items, used as fillers, (adapted) from Travers, Rolison and Feeney (2016). The fill…
publisher: Lancaster University
date: 2018
contributor: Ellie Ball
rights: Open
relation: None
format: data/Excel.csv
language: English
type: Data
coverage: LA1 4YF