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Cognition and Perception

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Articles 61 - 70 of 70

Full-Text Articles in Psychological Phenomena and Processes

Computational Modeling Of Contrast Sensitivity And Orientation Tuning In Schizophrenia, Steven M. Silverstein, Docia L. Demmin, James A. Bednar May 2017

Computational Modeling Of Contrast Sensitivity And Orientation Tuning In Schizophrenia, Steven M. Silverstein, Docia L. Demmin, James A. Bednar

MODVIS Workshop

Computational modeling is being increasingly used to understand schizophrenia, but, to date, it has not been used to account for the common perceptual disturbances in the disorder. We manipulated schizophrenia-relevant parameters in the GCAL (gain control, adaptation, laterally connected) model (Stevens et al., 2013), run using the Topographica simulator (Bednar, 2012), to model low-level visual processing changes in the disorder. Our models incorporated: separate sheets for retinal, LGN, and V1 activity; gain control in the LGN; homeostatic adaptation in V1 based on a weighted sum of all inputs and limited by a logistic (sigmoid) nonlinearity; lateral excitation and inhibition in …

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Observational Assessment Of Empathy In Parent-Child Verbal Exchanges And Their Influence On Child Behavior, Patty Carambot Sep 2016

Observational Assessment Of Empathy In Parent-Child Verbal Exchanges And Their Influence On Child Behavior, Patty Carambot

Dissertations, Theses, and Capstone Projects

Empathy, the ability to both experientially share in and understand others’ thoughts, behaviors, and feelings, is vital for human adaptation. Deficits in empathy development have implications across the lifespan for the development of prosocial behavior, social functioning, mental health disorders, and risk for antisocial behavior (e.g., Guajardo, Snyder, & Petersen, 2009; Moreno, Klute & Robinson, 2008). In light of these societal and individual burdens, it is imperative to foster and strengthen the development of this ability early in life to prevent or ameliorate such negative outcomes. This type of prevention can take a variety of forms, but parent and child …

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Exercises On Overcoming Perfectionist Tendencies, Jake Yoo May 2016

Exercises On Overcoming Perfectionist Tendencies, Jake Yoo

Bachelor of Fine Arts Senior Papers

In my latest series, I investigate my neurotic perfectionist tendency through repetition of phrases that I understand to be true in my head, but have a problem with accepting it in my heart. This way, I am studying my personal biases and the way I perceive the world in order to break free from unwanted behaviors and process negative emotions. Louise Bourgeois is a historical precedence to my practice as whole, while the series functions similarly to Yayoi Kusama’s dot and net paintings—a psychological portrait achieved through continuous repetition of a few elements.

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Build-Up Effect Of Auditory Stream Segregation Using Amplitude-Modulated Narrowband Noise, Harley J. Wheeler May 2016

Build-Up Effect Of Auditory Stream Segregation Using Amplitude-Modulated Narrowband Noise, Harley J. Wheeler

Senior Honors Projects, 2010-2019

Recent psychoacoustic experiments (Böckmann-Barthel et al., 2014; Deike et al., 2012) have re-examined research regarding stream segregation and the build-up effect. Stream segregation is the ability to discern auditory objects within a stream of information, such as distinguishing one voice amongst background noise or an instrument within an orchestra. Initial works examining this topic proposed that auditory information is not immediately distinguished as various streams, but rather that differences accumulate over time, allowing listeners to segregate information following a period of build-up (i.e., the build-up effect); whereas more current findings indicate a build-up period is unnecessary for segregation. This experiment’s …

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The Effects Of A Trauma-Informed Care Training Program On Mental Health Professionals Knowledge, Skills, And Attitudes With The Smi, Angelina Pelletier Jan 2016

The Effects Of A Trauma-Informed Care Training Program On Mental Health Professionals Knowledge, Skills, And Attitudes With The Smi, Angelina Pelletier

PCOM Psychology Dissertations

Trauma has been found to be highly prevalent among individuals diagnosed with SMIs. Mental health professionals have been reported to misdiagnose or avoid addressing trauma in this population. There is a need to provide information about trauma and to foster awareness among mental health professionals who are treating individuals diagnosed with SMIs. With a TIC approach, operating from a recovery-oriented philosophy, there have been interventions created to address trauma and SMIs with the aim of developing awareness about trauma and the impact it may have on someone’s life. With these factors in mind, mental health professionals should be competent in …

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The Effect Of Auditory Stimuli On Visual Time-To-Contact Perception, Chelsea L. Rugel May 2015

The Effect Of Auditory Stimuli On Visual Time-To-Contact Perception, Chelsea L. Rugel

Senior Honors Projects, 2010-2019

Previous research has demonstrated that auditory and visual stimuli have individual effects on the accuracy of a person’s estimation of time-to-contact (TTC), the time at which two objects collide. Prior findings also suggest that there is cross-modal interference between vision and audition; however, this phenomenon has never been studied in a TTC situation. (Driver & Spence, 1998; Ichikawa & Masskura, 2006; Roseboom, Kawabe, & Nishida, 2013) In this study we attempted to fill in this research gap by examining the effect of auditory speed cues over visual speed cues in a two-dimensional TTC scenario, and by determining if an object’s …

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Inventory Of Cognitive Distortions: Validation Of A Measure Of Cognitive Distortions Using A Community Sample, Michael B. Roberts Jan 2015

Inventory Of Cognitive Distortions: Validation Of A Measure Of Cognitive Distortions Using A Community Sample, Michael B. Roberts

PCOM Psychology Dissertations

The purpose of this study was to examine and evaluate further the psychometric properties of a self-report inventory of cognitive distortions using a nonclinical, community sample. A group of 474 individuals were contacted via the social networking site, Facebook, and through a college list-serve and were asked to complete multiple measures and also to send the link to other individuals, thus utilizing a snowball sample. The measures used included the Inventory of Cognitive Distortions (ICD), Dysfunctional Attitude Scale (DAS), Perceived Stress Scale (PSS), and a brief questionnaire to collect demographic information on each participant. Results revealed positive psychometric properties for …

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“Me & My Brain”: Exposing NeuroscienceʼS Closet Dualism, Liad Mudrik, Uri Maoz Sep 2014

“Me & My Brain”: Exposing NeuroscienceʼS Closet Dualism, Liad Mudrik, Uri Maoz

Psychology Faculty Articles and Research

Our intuitive concept of the relations between brain and mind is increasingly challenged by the scientific world view. Yet, although few neuroscientists openly endorse Cartesian dualism, careful reading reveals dualistic intuitions in prominent neuroscientific texts. Here, we present the “double-subject fallacy”: treating the brain and the entire person as two independent subjects who can simultaneously occupy divergent psychological states and even have complex interactions with each other—as in “my brain knew before I did.” Although at first, such writing may appear like harmless, or even cute, shorthand, a closer look suggests that it can be seriously misleading. Surprisingly, this confused …

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Diagnosing The Prodromal State Of Alzheimer's Disease, Jennifer Bartkowiak May 2009

Diagnosing The Prodromal State Of Alzheimer's Disease, Jennifer Bartkowiak

Honors Scholar Theses

Mild Cognitive Impairment- Amnestic Subtype (MCIa) is a putative prodromal stage of Alzheimer’s Disease (AD) characterized by focal deficits in episodic verbal memory. Less is known about relative deficits in visuospatial learning, although there is ample evidence indicating involvement of the hippocampus in visuospatial learning, as well as hippocampal degeneration in early AD. The aim of this study was to better characterize the components of working memory dysfunction in people with MCIa to increase the ability to reliably diagnose this disease. Fifty-six elderly adults diagnosed with MCIa and 94 healthy elderly completed a hidden maze learning task. Results indicated similar …

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Varied Definitions Of Risk Related To Sensation Seeking Trait, Pål Ø.U. Dåstol, Britt-Marie Drottz-Sjöberg Jun 2000

Varied Definitions Of Risk Related To Sensation Seeking Trait, Pål Ø.U. Dåstol, Britt-Marie Drottz-Sjöberg

RISK: Health, Safety & Environment (1990-2002)

[Excerpt] "Risk judgments seem related to which definitions of risk a person uses. Earlier studies suggest that people who use a "probability" definition of risk give different, and somewhat lower, subjective estimates of risk than those who instead prefer a "consequence" definition. In addition, an "optimistic bias" often can be found, and subjects usually evaluate personal risk systematically lower than risk for people in general."

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