Cognition and Perception Commons^™

Mechanisms Of Value-Biased Prioritization In Fast Sensorimotor Decision Making, Kivilcim Afacan-Seref

Dissertations and Theses

In dynamic environments, split-second sensorimotor decisions must be prioritized according to potential payoffs to maximize overall rewards. The impact of relative value on deliberative perceptual judgments has been examined extensively, but relatively little is known about value-biasing mechanisms in the common situation where physical evidence is strong but the time to act is severely limited. This research examines the behavioral and electrophysiological indices of how value biases split-second perceptual decisions and the possible mechanisms underlying the process. In prominent decision models, a noisy but statistically stationary representation of sensory evidence is integrated over time to an action-triggering bound, and value-biases …

Visual Entrainment Of Perception-Related Neural Oscillations As A Mechanism For Maintaining Rhythmic Temporal Expectations Across A Wide Range Of Frequencies, Michael James Gray

Dissertations, Theses, and Capstone Projects

Visual sensitivity fluctuates rhythmically, in-synch with ongoing, EEG-recorded neural oscillations across a wide range of frequencies (~1-25hz). Some recent work has suggested that these perception-related neural oscillations can be entrained by rhythmic visual stimulation. Evidence is also emerging that the entrainment of ongoing oscillations in visual and auditory cortices is involved in rhythmic temporal expectations. In the introduction chapter, I attempt to bridge these bodies of literature and hypothesize that rhythmic visual stimuli automatically entrain ongoing, perception-related neural oscillations and that this mechanism supports the maintenance of rhythmic temporal expectations. Chapters 2 and 3 address this hypothesis from different angles. …

Behavioral Hypervigilance In A Normative Population, Karly Weinreb

Theses and Dissertations

Hypervigilance is conceptualized as a symptom of trauma-related disorders, however it can also occur in a normative population. To distinguish normative hypervigilance from trauma-related hypervigilance, 372 participants (123 trauma-exposed and 249 non-trauma-exposed) completed a questionnaire assessing hypervigilance in contexts. Trauma-exposed participants reported greater levels of hypervigilance in 3 contexts.

Cosmetics Increase Skin Evenness: Evidence From Perceptual And Physical Measures, Carlota Batres, Aurélie Porcheron, Julie Latreille, Magalie Roche, Frédérique Morizot, Richard Russell

Psychology Faculty Publications

Background

Cosmetics are commonly attributed with increasing skin evenness, yet little published data characterizes the effect, either perceptually or physically. We therefore investigated whether makeup increases skin evenness using a perceptual measurement and two physical measurements of color and luminance homogeneity.

Materials and Methods

Twenty‐two French women (aged 29‐45 years) were photographed without cosmetics, with self‐applied cosmetics, and with professionally‐applied cosmetics. In Study 1, 143 participants rated skin evenness. In Study 2, each face was delineated to create regions of interest (ROI) in the cheek and forehead areas. Both ROIs were then analyzed for luminance homogeneity using an established measure …

The Generalization Of Fear Condition Between Viewed And Imagined Percepts, Lauryn Michelle Burleigh

LSU Master's Theses

Mental images can provoke intense emotional states (Holmes & Matthews, 2010). Imagery and perception have common neural and physiological mechanisms, including activation of the early visual areas (Albers et al., 2013). We tested the prediction that individuals can acquire fear to imagined percepts and if this fear transfers to viewing percepts, using fMRI and self-reported measures to determine participants’ fear. The participants completed a task in which they viewed and imagined two stimuli, and were fear conditioned when imagining the CS+. Participants are only told that mild electrical stimulation will be paired with one of the stimuli, but not which …

Consumers’ Preference Leading Purchase Intention Toward Manipulation Of Form And Transparency For Juice Packaging Design, Swati Pal, Abhishek Yevalkar, Amrita Bhattacharjee, Shivani Holkar

Journal of Applied Packaging Research

Packaging plays a fundamental role on consumer’s intention to purchase, as it may be the first contact between the consumer and the product. The product packaging has a crucial role to attract consumer, force them to choose the product and act as a brand communication vehicle. The point of focus is how the elements of the package design affect consumer’s perceptions about products and brand. In this study, to understand the effect of package form and transparency on consumers’ pre-purchase preference of juice packaging, the participants (N=60) are asked to assess six designs against a 5-point Likert scale. The findings …

Aging And Visual Spatial Integration, Alexia J. Higginbotham

Masters Theses & Specialist Projects

The current study evaluated the ability of 20 younger and 20 older adults to discriminate shapes depicted by Glass patterns. On any given trial, observers identified a particular pattern as either possessing a radial or concentric organization. Detecting a shape defined by a Glass pattern requires the successful detection of the orientations of its constituent local dipoles. In addition, long-range processes are needed to integrate the spatially separated dipoles into perceivable contours that have a particular (e.g., radial or concentric) organization. In the current experiment, the shapes were defined by either 40 or 200 oriented dipoles spread over an area …

The Effect Of Perception Biases On Associated Value Of Stimuli, Jordan Broussard

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Negative and positive stimuli appear to have their own unique effects on mood, behavior, and even underlying perceptions. Previous experiments have shown that people have the tendency to focus more on negative stimuli than positive; this is referred to as the “negativity effect”. The present study examined this bias, as well as the level of truth that people associate with positive or negative stimuli. In this experiment, students were split into groups and given either a “positive” or “negative” news article to read. Then, they were presented with two scenarios consisting of professors providing either “negative” or “positive” feedback to …

A Book And Its Cover: The Effects Of Dynamic And Static Facial Expressions On The Perction Of Personality Traits, Jonathan Ojeda

All Master's Theses

This study used three dynamic and three static images of older adult men depicting either smiling, scowling, or neutral facial expressions to examine the influence of motion on emotion identification and stereotype activation, specifically the Halo Effect, in older adults (55-85 years). To that end, two hypotheses emerged: 1) older adults will be more accurate in identifying facial expressions when viewing dynamic facial expressions than static facial expressions, and 2) participants exposed to the dynamic stimuli would experience greater levels of the Halo Effect with the greatest levels in the smiling facial expression condition. A 2 (stimulus type: dynamic and …

Six Of One, Une Demi-Douzaine De L’Autre: Detecting Cross-Language Code-Switching In A Continuous Narrative, Melissa Kadish

Senior Independent Study Theses

This Independent Study examined how cross-language code-switching is processed and perceived. The following experiment compared how long English-French bilinguals, English monolinguals, and English-speaking French-language-learners took to detect instances of French/English code-switching in a semantically-rich narrative. Bilinguals displayed shorter change-detection response latencies than language learners and monolinguals, but the latter two groups did not significantly differ. These results provide insight into how the observed cognitive differences between bilinguals and monolinguals may develop, and offer support for the multi-language lexical processing theory of language interference. This study also addresses potential sociocultural origins of the observed language-level differences in code-switching perception by examining …

Object Handling With Contemporary Craft Objects: An Observational Study Of An Embodied, Social And Cognitive Process, Bruce Davenport, Neill James Thompson

The Qualitative Report

This study focuses on the ways that people interact around contemporary craft objects. The ambiguous quality of these objects holds people’s attention and inhibits autobiographical narratives. The study focused on the relationship between the perceptual language used by participants and the ways in which they interacted with the objects. The analytical approach taken here begins with close observation and careful description of single cases and working towards valid generalisations rather than imposing an interpretation from the outset by explicitly positing a hypothesis. Six pairs of women were invited to participate in object handling conversations in an art museum setting. The …

Discrete Information Object Analysis Of Primary Flight Display Clutter, Kenneth Ward

National Training Aircraft Symposium (NTAS)

Modern aircraft utilize digital display screens to provide critical flight and system status information to pilots. As computing power has increased, the number of data sources and information presented has also increased, with the goal of increasing situational awareness. However, the display can become cluttered with extraneous or irrelevant information, to the detriment of pilot cognitive workload. Pilot perceptions of clutter vary with flight experience, introducing unique considerations in the flight training environment, given the experience difference between instructors and students. Researchers have studied the problem, identifying both the number of visual objects and information density as predictors of perception …

Processing Emotional Expression In The Dance Of A Foreign Culture: Gestural Responses Of Germans And Koreans To Ballet And Korean Dance, Zi Hyun Kim, Hedda Lausberg

Journal of Movement Arts Literacy Archive (2013-2019)

Artistic dance differs between cultures with regard to the formal movement repertoire and methods to represent dancer's emotions. The present study explores how differently the spectators perceive the dance scenes of their own and foreign cultures. We showed German and Korean participants sad and happy dance scenes of the French ballet Giselle and Korean dance Sung-Mu. To learn the perceived thoughts and feelings of the participant from the dance scenes, we analyzed the frequency of their hand movements and gestures, which were accompanied by verbal descriptions of the participant's appreciation immediately after observation of the dance stimuli. The videotaped …

Voices Of Notators: Approaches To Writing A Score--Special Issue, Teresa L. Heiland

Journal of Movement Arts Literacy Archive (2013-2019)

In this special issue of Voices of Notators: Approaches to Writing a Score, eight authors share their unique process of creating and implementing their approach to notating movement, and they describe how that process transforms them as researchers, analysts, dancers, choreographers, communicators, and teachers. These researchers discuss the need to capture, to form, to generate, and to communicate ideas using a written form of dance notation so that some past, present, or future experience can be better understood, directed, informed, and shared. They are organized roughly into themes motivated by relationships between them and their methodological similarities and differences. …

Emotion Discrimination In Peripheral Vision, Hayley M. Lambert

Masters Theses & Specialist Projects

The recognition accuracy of emotion in faces varies depending on the discrete emotion being expressed and the location of the stimulus. More specifically, emotion detection performance declines as facial stimuli are presented further out in the periphery. Interestingly, this is not always true for faces depicting happy emotional expressions, which can be associated with maintained levels of detection. The current study examined neurophysiological responses to emotional face discrimination in the periphery. Two event-related potentials (ERPs) that can be sensitive to the perception of emotion in faces, P1 and N170, were examined using EEG data recorded from electrodes at occipitotemporal sites …

Unimanual And Bimanual Haptic Shape Discrimination, Catherine Jane Dowell

Masters Theses & Specialist Projects

In the current study 24 younger adults and 24 older adults haptically discriminated natural 3-D shapes (bell peppers, Capsicum annuum) using unimanual (one hand used to explore two objects) and bimanual (both hands used, but each hand explored separate objects) successive exploration. Haptic exploration using just one hand requires somatosensory processing in only one cerebral hemisphere (the hemisphere contralateral to the hand being used), while bimanual haptic exploration requires somatosensory processing in both hemispheres. Previous studies related to curvature/shape perception have found either an advantage for unimanual exploration over bimanual exploration or no difference between the two conditions. In contrast …

Do Clothing Style And Color Affect Our Perceptions Of Others?, Ariel M. Kershner

Faculty Curated Undergraduate Works

Prior research has shown that women who wear red clothing or suggestive clothing are perceived as more attractive, having greater sexual intent, and having more negative qualities than women dressed in different colors or less suggestive clothing. This bias towards perceiving sexual intent may be evolutionary or may be due to people projecting their emotions onto others. The current study builds from this research by performing a 2 (color: white or red) x 2 (clothing type: suggestive or non-suggestive) between-subjects experiment. We hypothesized that women would be perceived as more attractive and as having greater sexual intent while wearing red …

The Role Of Sleep Deprivation And Fatigue In The Perception Of Task Difficulty And Use Of Heuristics, Mindy Engle-Friedman, Gina Marie Mathew, Anastasia Martinova, Forrest Armstrong, Viktoriya Konstantinov

Publications and Research

Objectives: This study investigated the effects of sleep deprivation on perception of task difficulty and use of heuristics (mental shortcuts) compared to naturally-experienced sleep at home. Methods: Undergraduate students were screened and assigned through block-random assignment to Naturally-Experienced Sleep (NES; n=19) or Total Sleep Deprivation (TSD; n=20). The next morning, reported fatigue, perception of task difficulty, and use of “what-is-beautiful-is-good,” “greedy algorithm,” and “speed-accuracy trade-off ” heuristics were assessed. Results: NES slept for an average of 354.74 minutes (SD=72.84), or 5.91 hours. TSD rated a reading task as significantly more difficult and requiring more time than NES. TSD was …

Log Kya Kahenge: Psychological Well-Being And Perceived Stigma In The South Asian American Community, Khushboo Jain

Pomona Senior Theses

Current research has independently studied depression, stigma, and coping mechanisms in relation to culture, yet the effects of perceived stigma on the relationship between depression and control coping are heavily understudied. Typically, studies have broadly focused on comparing eastern and western cultures, but have not analyzed how populations with mixed cultural influences experience depression and stigma and further engage in control coping mechanisms. This study thus explores how perceived stigma moderates the relationship between depressive symptoms and control coping mechanisms for South Asian Americans. The study hypothesizes that the level of perceived stigma will moderate the relationship between depression and …

Syntax And Semantics Of Perceptual Representation, James K. Quilty-Dunn

Dissertations, Theses, and Capstone Projects

This dissertation is a defense of perceptual pluralism, the thesis that perceptual systems deliver multiple types of representations including those used in thought. In particular, it argues that perceptual systems output iconic (i.e., image-like, analog) representations as well as discursive (i.e., language-like, digital) states. A central thesis is that perceptual representations of objects are propositional and composed of concepts. It also develops a compositional syntax of iconic representation called the coordination model, according to which icons are sets of primitive parts, each of which determines values along multiple analog feature dimensions simultaneously. The dissertation supports the conclusion that perceptual …

Solving The Aperture Problem: Perception Of Coherent Motion, Lindsey Shain

Mahurin Honors College Capstone Experience/Thesis Projects

The aperture problem describes an effect by which a contoured stimulus, moving behind an aperture with both ends occluded, appears to move in a direction perpendicular to its own orientation. Mechanisms within the human visual system allow us to overcome this problem and integrate many of these locally ambiguous signals into the perception of globally coherent motion. In the current experiment, observers viewed displays composed of many straight contours, arranged in varying orientations and moving behind apertures. The total pattern of movement was consistent with a globally coherent trajectory. Observers were asked to estimate direction of global motion over a …

Using Classification Images To Understand Models Of Lightness Perception, Minjung Kim, Jason M. Gold, Richard F. Murray

MODVIS Workshop

No abstract provided.

A Measurement Of Campus Presence: The Cognitive Link Between Campus Engagement And Positive Outcomes In College Students, Daniel M. Kleiman

Honors Undergraduate Theses

Prior research has shown that positive psychological states and attitudes are known outcomes in students who are engaged on their college campus. Although many studies prove this to be evident, literature lacks examination between these two variables. The purpose of the current study was to find a cognitive link between student engagement and the measured outcomes of self-esteem, college self-efficacy, college affiliation, and levels of optimism/pessimism. The study proposed that there is a process of developing an internal sense of presence on campus, which occurs in those students that are actively engaged in activities outside of the classroom. Individual personality …

The Reflection And Reification Of Racialized Language In Popular Media, Kelly E. Wright

Theses and Dissertations--Linguistics

This work highlights specific lexical items that have become racialized in specific contextual applications and tests how these words are cognitively processed. This work presents the results of a visual world (Huettig et al 2011) eye-tracking study designed to determine the perception and application of racialized (Coates 2011) adjectives. To objectively select the racialized adjectives used, I developed a corpus comprised of popular media sources, designed specifically to suit my research question. I collected publications from digital media sources such as Sports Illustrated, USA Today, and Fortune by scraping articles featuring specific search terms from their websites. This experiment seeks …

Correspondence Between Haptic And Visual Perception Of Stand-On-Ability: Do Hills Look As Steep As They Feel?, Jonathan Kenealy Doyon

Master's Theses

Vision and haptics play a central role in perceiving environmental layout to guide action. Hajnal, Wagman, Doyon, and Clark (2016) demonstrated that visual perception of stand-on-ability is accurate compared to action capabilities, whereas haptic perception of stand-on-ability reliably underestimates action capabilities. This finding contradicts Gibson’s (1979) theory of equivalence in perceptual systems, which suggests that perception should be equivalent regardless of modality. Previous comparisons of visual and haptic perception tested the modalities in isolation. The current experiment directly compares visual to haptic perception of stand-on-ability by using one perceptual system to estimate the other. Observers viewed a surface set to …

Animals In The Wild, Brittany Samson

The Transdisciplinary STEAM+ Journal

As a photographer, I am extremely interested in the concept of perception and I let this concept drive most of my artistic work. I present four images from my photographic series “Animals in the Wild,” which explore this idea of perception. These four images: Giraffe, Dinosaur, Buffalo, and Bunny—are drastically varied photos that include no real animals, but instead beg the mind to perceive shapes, colors, figure, and coincidence as an animal.

Insects: Still Looking Like Zombies, Christopher S. Hill

Animal Sentience

In arguing that insect brains are capable of sentience, Klein & Barron rely heavily on Bjorn Merker’s claim that activity in the human mid-brain is sufficient for conscious experience. I criticize Merker’s claim by pointing out that the behaviors supported by midbrain activity are much more primitive than the ones that appear to depend on consciousness. I raise a similar objection to Klein & Barron’s contention that insect behaviors are similar to behaviors that manifest consciousness in human beings. The similarity is weak. I also respond to the related view that integrative activity in mid-brain structures is sufficient to explain …

Consciousness, Perception, And Short-Term Memory, Henry F. Shevlin

Dissertations, Theses, and Capstone Projects

Dissertation Abstract: Consciousness, Perception, and Short-Term Memory

When we engage in almost any perceptual activity – recognizing a face, listening out for a phone-call, or simply taking in a sunset – information must be briefly stored and processed in some form of short-term memory. For philosophers attempting to develop an empirically grounded account of perception and conscious experience, it is therefore crucial to engage with scientific theories of the kinds of short-term memory mechanisms that underlie our moment-to-moment retention of information about the world. To that end, in this dissertation I review recent scientific evidence for a new form of …

The Neck As A Potential Site For Vestibular Tactile Sensory Substitution, Kelly A. Morrow

All NMU Master's Theses

In order to determine if the neck could be used a site for vestibular-to-tactile sensory substitution, two experiments were performed to take an in-depth look of the tactile sensitivity of the neck and how it responds to vibrotactile stimuli. Experiment 1 explored how participants respond to a vibrotactile neck device, the Arraysense, and how well this device conveys information about a single contact point on the participant’s skin. Results showed that determining the exact point of stimulation is difficult for participants, but they can identify the area of stimulation with ease. Additionally, our results showed that the front of the …

Global/Local Processing In Incidental Perception Of Hierarchical Structure, Mark S. Mills

Department of Psychology: Dissertations, Theses, and Student Research

The goal of the current thesis is to provide a framework for investigating and understanding visual processing of hierarchical structure (i.e., local parts nested in global wholes, such as trees nested in forests) under incidental processing conditions—that is, where processing of information at global and local levels is both uninformative (cannot aid task performance) and task-irrelevant (need not be processed to perform the task). To do so, a novel method combining two widely-used paradigms (spatial cueing and compound stimulus paradigms) is used for implicitly probing observers’ perceptual representations over the course of processing. This compound arrow cueing paradigm was used …