The Effects of Posture on Body Part Width Representations
subject: Body perception, affordances, somatosensation, visual perception
description: Despite the ubiquity of our bodily experiences, our representations of our body’s size are not geometrically accurate. For example, when estimating the length of body parts using the hand as a metric, consistent patterns of distortions across body parts are observed. Given the presence of these distortions, some have proposed that representations of length and width emerge directly, or indirectly, from the organisation of somatotopic maps in somatosensory cortex, rather than from their actual relative dimensions. However, whilst length representations are well researched with respect to this notion, less is known about representations of body part width across the body. Moreover, it is unclear from previous research whether body part width representations may be confounded by participants’ posture. Specifically, individuals have shown an enhanced tendency to overestimate body part width when seated upon a chair, suggesting that the chair may become incorporated into the body representation. Consequently, the aim of the current investigation was to further elucidate how width is represented across body parts and whether posture moderates these representations. Participants estimated how many hands widths made up the width of the back, shoulders, hips, torso, thigh, and head in one of three conditions: standing (n = 37), seated upon a chair (n = 33), or seated upon a backless stool (n = 39). Whilst estimates did differ across body parts, no effect of posture was observed. Moreover, the patterns of distortions observed differed from those seen in previous investigations. Results therefore indicate that body part width representations are neither accurate nor fixed, rather, they show distortions which vary across individuals and contexts. It is proposed that inter-individual heterogeneity in width representations may result from humans possessing alternative perceptual mechanisms for judging aperture passability. Therefore, maintaining fixed width representations is unn…
creator: Lettie Wareing
source: Method Participants Ethical approval for this study was obtained from Lancaster University Psychology Department on 31st May 2023. As this study aimed to investigate body part width representations in healthy populations, only participants aged 18-55 years without any physical, or mental impairment were included in the study. However, as previous research (Readman et al., 2021) using the same paradigm for length estimates has shown no influence of anxiety or depression on body part estimates, participants with diagnoses of these conditions were not excluded. Participants were excluded if they had any current or historic diagnosis of cognitive impairment, as this can affect instruction comprehension (Han et al., 2011), or visual impairment, to ensure difficulties in seeing the body parts did not confound findings. Furthermore, given the associations between other psychiatric impairments (e.g., Priebe & Röhricht, 2001), neurological impairments (e.g., Blanke et al., 2004), or eating disorders (Mölbert et al., 2017) with distorted body perceptions, individuals with a current or historic diagnosis of a condition falling within any of these categories were excluded. A total of 123 (61 females) participants ranging from 18 to 68 years (M = 28.80 years, SD = 10.79) were recruited via opportunity sampling for this study. Participant recruitment was ended before the required N = 150 due to time constraints. All participants were entered into a draw to win one of two £25 vouchers as an expression of goodwill. A total of 15 participants were excluded for failing to meet the inclusion criteria, leaving a final sample of N = 108 (50 females). Participants were aged 18 to 55 years (M = 27.98 years, SD = 9.56); the majority of participants were right-handed (n = 99) and over half the participants had normal vision (52.78%), with the remaining participants having corrected-to-normal vision. Reasons for exclusion included a current or historic psychiatric impairment (n = 2) or eatin…
publisher: Lancaster University
date: 2023
contributor: Leanna Keeble
rights: Open
relation: None
format: Data/Excel.csv
language: English
type: Data
coverage: LA1 4YF

Does Noise Affect How Children Learn Grammar in the Classroom?
subject: Developmental, regression
description: In a classroom environment noise can be a significant impediment, obstructing and distorting essential information being taught. Extensive prior research consistently indicates that noise has a detrimental impact on learning, those who learn in noise retain and comprehend far less information than their counterparts who learn in quiet. To date there are no studies that investigate the effect of noise on learning grammar specifically -the primary aim of the current study is the address this research gap. This paper details our recruitment of 16 children aged 7– 12 through the Babylab database at Lancaster university. This study employed a between participants design, where children completed a three-part audio evaluation, engaged in an artificial grammar paradigm, and a undertook a working memory task. The artificial grammar paradigm was employed as our primary assessment tool, participants were exposed to the grammar either in noise or in quiet. Results were analysed using a multiple regression with total grammar score as the dependent variable and age, gender, condition, and working memory as the independent variables. In contrast the prior research, our results revealed that the effect of the independent variables on the dependent variable was statistically nonsignificant, proving our null hypotheses to be true. These findings suggest that background noise does not affect how children learn grammar in the classroom challenging the existing understanding that noise negatively impacts learning.
creator: Ashlynn Mayo
source: Participants 16 children aged 7-12 years old participated in this study, unfortunately due to technical issues 5 participants’ data were excluded leaving 11 children’s data to be included in the analysis (M=8.64, SD=1.63, female=7, male=4). Children were recruited through the Lancaster University Babylab database and by flyers posted on social media and local community. A requirement of the current study was that children be English speaking monolinguals, this is because an abundance of research has indicated that those who can speak two or more languages are at a far greater advantage when it comes to new language acquisition (Antoniou et al., 2015). Therefore, in order to control the likelihood of extraneous variables such as this we ensured all participants were English speaking monolinguals only. Furthermore, children were also required to have normal vision or corrected to normal vision. To rule out hearing loss all children had to pass an otoscope inspection, a tympanometry test, and a pure tone hearing screening at 20dB in the standard frequencies (250Hz-8kHZ). The current study employed a between participant design whereby subjects were allocated to a condition based on their age and gender -age was categorised into 7-9 and 10-12- in order to ensure that there were as equal an amount of males and females in each condition over all ages. It is crucial for the validity of the study that children are only exposed to the artificial grammar paradigm once or data will be rendered unreliable as they will have an unfair advantage over the other participants. Ethics for the current study have been obtained from the Departmental Ethics Committee (DEC), Psychology Department at Lancaster University. Materials This study was conducted within a double walled soundproof chamber at Lancaster University’s PELiCAN lab where the participant sat at a desk with a monitor placed in front of them. A secondary researcher was present in the lab for health and safety purposes. Conse…
publisher: Lancaster University
date: Academic year: 22-23
contributor: Chloe Massey, Molly Pugh, Chloe Kitis
rights: Open
relation: None
format: Data/Excel.xls
language: English
type: Data
coverage: LA1 4YF

The effects of code switching in the level of persuasiveness of advertising and marketing messages on bilingual consumers.
subject: Bilingualism Code-switching Language Manipulation Advertising Communication Language Comprehension/Cognition
description: Bilingualism and advertising are two concepts which are not commonly related, but based on recent statistics they definitely should be. Recent numbers show that more than 50% of the world’s population is bilingual (Grosjean, 2010). However, there has been minimal research concerning bilingual consumers and how bilinguals may differently encounter advertising messages, based on their ability to speak two languages. The research that has been done, is primarily based on code switching; the practice of switching between languages during speech. It is a very common practice between bilinguals, which they use to better communicate and better express themselves during a conversation in a specific social context. This study will attempt to analyse the effects of language manipulation upon bilingual individuals, by implementing the concept of advertising and more specifically bilingual advertising. participants will firstly encounter a manipulation of attitude towards language, before encountering a set of advertising slogans of certain products, in a code-switched format. They will then have to rate the products, based on the persuasiveness of the advertising slogans.
creator: Stephanos Mosfiliotis
source: Firstly, a manipulation of attitude towards the language took place. Participants were presented with a random mock article, either in Greek or English. Participants were then presented with four audio recordings of advertising messages/slogans of four different products. Slogans were either all in Greek or English and they were presented in the same code-switching direction; from primary to Secondary or from Secondary to primary. A single word was chosen from each slogan and was code-switched to the opposite language appropriately. Participants were then asked to evaluate the featured products based on the advertising message they heard. Evaluations were obtained through a series of six questions, asking the participant to rate the featured product on a Likert type scale, varying from one to six. These included: “poor/high quality”, “level of appeal”, “odds of recommending the product to others”, “odds of buying the product”, “mediocre/exceptional” and “bad/good”.
publisher: Lancaster University
date: 14/08/2022
contributor: Katie Alcock
rights: Open
relation: None
format: Data/.CSV
language: English and Greek
type: Data
coverage: LA1 4YF

Interacting in a Virtual Environment, the role of visual perception, the human hand and the recognition of rescaling.
subject: Visual Perception Rescaling effects Virtual Reality Hand-size Constancy Body size effects.
description: A common assumption from perception research is that we can estimate the size of the environment by using our own hand as a perceptual metric by comparing the size of our hand to the environment. Further research aimed to explore this effect by manipulating the size of the hand to see if it could accurately estimate the size of objects and found that even when the hand was magnified or minimized people perceived their hand to stay around the same size. The effect that the hand is perceived as a constant size is called the hand-size constancy effect and the current research has aimed to expand on previous research by examining if hand-size constancy still occurs even when hand size increases whilst in the presence of the participant. This research was done using a new method which eliminates more demand characteristics than previous hand-size constancy research. Participants took part in a virtual scenario using virtual reality in which each time a participant attempted the task, their hand or non-corporeal hand gradually increased in size, until a total of 38% size increase. Results from this research found that participants did recognise their hand size increase in the non-corporeal condition and did not notice hand size change in the real hand condition. These results support previous research by finding that hand size constancy can still occur even when eliminating demand characteristics that may have occurred in previous research using a more discrete method.
creator: Connor Yates
source: Participants. The participants were 30 typically developing adults between the ages of 19 and 50 (N = 30, 12 male and 18 female, M = 24.39 years old, SD = 7.76 years). Participants were mainly recruited from a major university in the North West of England using posters on the university campus and online advertisements. Participants received £5 in return for their participation. Materials The current research used the Oculus Rift with leap motion to detect hand movement. The experiment was created using the Unity game engine software to create a programme called the virtual bowling alley. The virtual bowling alley was created to mimic a real table top bowling alley in which all the items in the game were created for this experiment including the bowling ball, the pins and the virtual hand used in the experiment. Two questionnaires were essential to this study, “The Embodiment Questionnaire” and “The Virtual Presence Questionnaire”. The Embodiment questionnaire was an adaptation from Sanchez-Vives’ research which explored visual hand illusions (Sanchez-Vives, Spanlang, Frisoli, Bergamasco, & Slater, 2010). The embodiment questionnaire was used to test the extent of different variables the participant may exhibit whilst within virtual reality. Variables related to ownership of limbs in virtual reality e.g. “I sometimes felt as if my hand was located where my virtual hand was to be” the illusion of movement which looked at how much your virtual arm impacted on the movement of your real arm, validity which looked at how your movements impacted on your virtual arm and control regarding how much control you had of your virtual arm. The Embodiment Questionnaire uses a 7-point Likert scale in which you rate how much you agree with the statement (Appendix 1). The other questionnaire required for this study was “The Virtual Presence Questionnaire” which was an adapted version from Usoh’s paper looking at presence questionnaires (Usho, Catena, Arman, & Slater, 2000). The virtu…
publisher: Lancaster University
date: 2018
contributor: Ellie Ball
rights: Open
relation: None
format: data/SPSS.sav data/csv
language: English
type: Data
coverage: LA1 4YF

Typeface and taste: The bittersweet effect of typeface on the perception of taste
description: This article aims to explore how the visual features of typeface on a product’s packaging, are capable of altering one’s taste experience with the product within through cross-sensory correspondences. A total of ninety-two participants from a selection of university graduates were selected to take part in one of three studies rating yogurts, typefaces and the interaction between the two. While visual features of the typeface like thickness and heaviness did not directly affect the rating of a products perceived thickness and weight, the typefaces were able to trigger different experiences of bitterness. When presented on the yogurt container, the more angular, thin typeface Palatino Italic caused the yogurt to be rated as significantly more bitter than the rounder, thicker font Cooper Black. Secondary tests found that the two typefaces rated alone, without the yogurt, did not possess the same significant differences in bitterness. However, they were rated as significantly different on the other scales measured, thus raising the question of exactly how the fonts were capable of manipulating participant’s taste experience. The study addresses this question and looks further into how typefaces perceptual qualities change once the letters presenting it are capitalised.
creator: Charlotte Wright
source: Rating Chart A rating chart (found in Appendix 4) was designed to allow participants to select the most neutral yogurt by ordering them in terms of the adjectives rated in the main study. These were thick to thin, heavy to light, dull to sharp, sweet to bitter and slow to quick. The chart contained a three point scale with related variables anchored at each end. Participants were then able to fill in which yogurt (A, B or C) they believed possessed the extremities of each variable pair (i.e. the thickest and the thinnest) leaving the most neutral yogurt being rated as somewhere between the two. Products As natural yogurt appeared to be the plainest yogurt in terms of flavour, colour and texture, three natural yogurts were selected for the pre-test. The first yogurt ‘A’ was the cheapest home-brand yogurt from Morrisons. Yogurt B was slightly more expensive (Yeo Natural), and the third (yogurt C) was the most expensive plain natural yogurt available (Onken). All yogurts were purchased from Morrisons Supermarket and cost between £1.00 and £2.00. Packaging Because all three products contained packaging with commercial labels which used a combination of various typefaces, colours and shapes, the yogurt had to be removed from the containers. The yogurts were then placed in three identical bowls and set on a table. A piece of paper in front of each informed the participant which was yogurt A, B and C. Procedure In turn participants were brought into an empty room and asked to sit at a desk in front of the three yogurts. They were presented with an information sheet, consent form and the rating sheet (Appendix 1, 2 and 4) and asked to sample each yogurt as many times as they felt necessary to rate which of the three was the least extreme in regards to the variables rated. They were each given a plastic spoon to test the yogurt and asked not to touch the bowl in case its weight affected their perception of the product. They then used the pen provided to rate which yogurt (A,…
publisher: Lancaster University
date: 2014
contributor: John Towse
rights: Open
format: data/data.ods
language: English
type: data
coverage: LA1 4YF

The Decoy Effect on Choosing Branded and Non-Branded Alcohol-related Products
subject: alcohol purchasing decoy effect
description: The decoy effect describes a phenomenon that the introduction of a third choice, usually an asymmetrically dominated one, would change the distribution of people’s preferences for the original two options. Monk et al. (2016) found a basic decoy effect on alcohol purchasing decisions. Extending this, the current study examined the impact of the decoy effect on alcohol-related purchasing decisions and whether the addition of brand names would further impact this. A total of 106 participants were asked to make decisions amongst four types of branded and unbranded drinks by completing an online questionnaire. They also completed the AUDIT, assessing problem drinking patterns, and a measure of trait effortful control. Results showed that the decoy appeared to affect alcoholic relative to non-alcoholic drinks, and affected branded products more than non-branded products. The results suggest that the decoy effect might affect alcohol-related purchasing decisions differently to non-alcoholic purchasing decisions, which might have managerial implications for marketers and health implications for hazardous alcohol consumptions.
creator: Wang Li
source: All the stimuli were pictures of bottles presented with text descriptions including the number of bottles and the total prices. Participants viewed a total of 80 deals, with 40 alcoholic products and 40 non-alcoholic products. Half of the products were branded and half unbranded. With regards to branded stimuli, pictures of bottles similar to those presented in supermarkets were shown (see Figure 2), whilst unbranded ones used similar unbranded bottles in terms of colour and shape. This allowed the products to correspond with both the diversity of goods in real supermarket but also to avoid unnecessary brand association (e.g. red glass bottles always remind consumers of Coca-Cola; Underwood, 2003). In the control condition, participants were shown products with two options, one with less bottles but cheaper, and the other with a greater quantity of bottles but more expensive. As such, option 1 represented the competitor option, which was cost-effective, and option 2 represented the target option, which was moderately cost- effective. The order of cost-effective and moderate-cost effective products was randomised throughout the experiment. In comparison, the experimental conditions also included a decoy option, which presented a product that was the least cost-effective. Although the decoy option itself was unlikely to be selected, it was expected to result in a different distribution of selections from the output of the control group. The sequences of the choice A (cost-effective), B (moderate cost-effective), and the C (decoy) were set randomly. Alcohol Use Disorders Identification Test (AUDIT). This questionnaire was made up of 10-items concerning personal drinking habits, drinking frequency and amount (Saunders et al., 1993). On a scale of one to over 30, articipants responsed to the questions such as “How many units of alcohol do you drink on a typical day when you are drinking?” and a total AUDIT score was computed. The scores of each question were accumulated …
publisher: Lancaster University
date: 2017
contributor: John Towse
rights: Open
format: data/ xlsx
language: English
type: Data
coverage: LA1 4YF

Cortical Hyper Excitability correlating with Visual Distortions and Hallucinations
subject: visual distortions cortical hyper excitability Pattern Glare Task
description: Background: The primary focus of our study is how the abnormalities in the visual experiences such as the visual distortions or hallucinations result in the increase in the cortical hyper excitability. The aberrant neural activity causes visual distortions. Susceptibility to such visual distortions reflects elevated levels of cortical hyper excitability. Methods: Forty-eight individuals completed the "Pattern Glare Task" (where they viewed certain striped grating patterns with different spatial frequencies). Participants also completed the Cortical Hyperexcitability Index (Chi) and the Cambridge Depersonalization Scale (CDS). Results: Pattern glare task showed that individuals experienced more visual distortions in the Medium Frequency (3 cpd). A very small sample of the population showed effects of depersonalisation disorder. Based on our results, we can say that individuals did show an elevated level of cortical hyperexcitability. Conclusion: The study suggests that non-clinical population also experiences a certain level of increase in cortical hyper excitability. It only establishes the utility of pattern glare with regards to CHi and CDS to add to our existing knowledge.
creator: Nishtha Bakshi
source: Pattern Glare Test The pattern glare task includes stripy patterns on three separate cards each with different spatial frequencies; low spatial frequency baseline grating (approx. 0.5 cycles per degree), high spatial frequency baseline grating (approx. 12 cpd), and the crucial medium spatial frequency grating (approx. 3 cpd). The computerised version of the pattern glare task was modified for this experiment, as we were using a paper-based version (Wilkins, 1995; Wilkins et al., 1984) for the same. The stimuli used in the experiment are given in FIGURE 1. The individuals are asked to stare at the white dot in the center of each pattern for approximately 10-15 seconds, while holding each pattern at arm's length. Following, a series of questions are asked to the participant i.e. if they experienced any blurring of lines, bending of lines, fading, shimmering, flickering or shadowy shapes. The participants on the basis of their experience on viewing each pattern, rate the above questions from a score of 0-7 where, 0-minimum and 7-maximum (Wilkins et al., 1984; Conlon et al., 1999). The score is obtained for each pattern and the difference between Pattern 2 and Pattern 3 is recorded, which is called as the '3-12 difference'; in other words, the difference between high frequency and the medium frequency (3cpd – 12cpd). Cambridge Depersonalisation Scale The CDS is a self-reporting questionnaire and is used to measure the duration and frequency of any depersonalisation symptoms that individual experiences in the time frame of the past six months. (Sierra and Berrios, 1999). The CDS is an instrument containing 29 items. Each of the items in the scale are rated on the basis of Likert-scale both for frequency (0-4; where, 0=never, 1=rarely, 2=often, 3=very often, and 4=all the time) and duration based on its average on how much the experiences last (1-6; where 1=few seconds, 2=few minutes, 3=few hours, 4=about a day, 5=more than a day, and 6=more than a week). Its global score…
publisher: Lancaster University
date: 2017
contributor: John Towse
rights: Open
relation: None
format: Data/data spreadsheet.xlsx
language: English
type: Data
coverage: LA1 4YF