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Cognitive Psychology Commons™

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2017

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Articles 1 - 30 of 213

Full-Text Articles in Cognitive Psychology

Caffeine Withdrawal And Dependence: A Review, Alexander Roberts Dec 2017

Caffeine Withdrawal And Dependence: A Review, Alexander Roberts

Williams Honors College, Honors Research Projects

With the prevalence of caffeine use increasing in modern lifestyles, it is important to look at the symptoms of caffeine use, including withdrawal and dependence, and whether these symptoms have implications for addiction. A limited number of assessments have been developed to assess caffeine withdrawal. In order to make a call for more assessments and programs to be developed to assist with healthy caffeine use, this literature review observed recent studies focusing on withdrawal and dependence. Ozsunger et al. (2009) classified caffeine withdrawal into three categories of symptoms. Three years later, Juliano et al. (2012) used an experimental approach to …


Examining Attentional Control And Processing Speed Deficits As Underlying Mechanisms Of Neuropsychological Impairment In Schizophrenia, Mayte Forte Dec 2017

Examining Attentional Control And Processing Speed Deficits As Underlying Mechanisms Of Neuropsychological Impairment In Schizophrenia, Mayte Forte

Graduate Masters Theses

Neuropsychological impairment is a key characteristic of schizophrenia (SZ), but its cognitive profile and underlying information processing mechanisms are not yet well understood. We compare patterns of neuropsychological functioning in 85 persons with SZ and 76 healthy controls across measures of intelligence, memory, and executive function. We then test the hypothesis that neuropsychological impairment in SZ is related to dual deficits in two related but distinct information processes: processing speed and attentional control. All research participants completed Wechsler Adult Intelligence Scale-Third Edition (WAIS-III), Wechsler Memory Scale Third Edition (WMS-III), and Wisconsin Card Sorting Test (WCST), all of which provided measures …


Combining An Intuitive Art Workshop And Neuroscience Rituals To Make Us Happy, Audrey Gran Weinberg Dec 2017

Combining An Intuitive Art Workshop And Neuroscience Rituals To Make Us Happy, Audrey Gran Weinberg

The Transdisciplinary STEAM+ Journal

One might wonder how intuitive art can connect to neuroscience and how this could be accomplished. In this descriptive article, research connecting art therapy and neuroscience has been collected and a workshop on Intuitive Painting has been described in detail. The connection was made by the author based on an article by Barker (2017), ‘4 Rituals to be more Happy,’ who writes a popular science blog. The rituals: gratefulness, expressing negative emotions, decision making and human touch were combined with Dr. Pinkie Feinstein’s method of Intuitive Painting in a small group setting. Although subjective, it would seem that at least …


Increasing Student Registered Nurse Anesthetists Clinical Self-Efficacy Using Peer Mentoring, Megan Christine Bass Dec 2017

Increasing Student Registered Nurse Anesthetists Clinical Self-Efficacy Using Peer Mentoring, Megan Christine Bass

Doctoral Projects

The purpose of this project is to determine if clinical self-efficacy is increased in SRNAs at The University of Southern Mississippi after participation in the peer mentoring program. The project was a one-group pre and posttest design in a sample of SRNAs who received peer mentoring. To evaluate the students’ perceived clinical self-efficacy before and after the peer mentoring educational intervention, the Rowbotham and Schmitz Student Self-Efficacy scale (SSE) (2013) was adapted and administered to second-year SRNAs (N=17). Clinical performance, skill and knowledge development, social interaction with clinical faculty, and coping with clinical stress are the four areas evaluated by …


Effects Of Restrained Eating On Episodic Memory And Implications For Homeostatic Appetite Regulation, Morgan Kindel Dec 2017

Effects Of Restrained Eating On Episodic Memory And Implications For Homeostatic Appetite Regulation, Morgan Kindel

Student Scholar Symposium Abstracts and Posters

Recent studies in the fields of Psychology and Neuroscience suggest a relationship between episodic memory and appetite regulation. A majority of these studies have used BMI as an important variable in this relationship and have found mild episodic memory deficits to be more likely in individuals with higher BMI’s. The goal of this research was to determine whether restrained disordered eating, regardless of BMI, influenced episodic memory and appetite regulation. Initially, we predicted that individuals showing dietary restraint would show signs of a stronger episodic memory, and therefore would have weaker hunger cues and stronger satiety cues, and that in …


Cognitive Behavioral Therapy Is Associated With Enhanced Cognitive Control Network Activity In Major Depression And Posttraumatic Stress Disorder, Zhen Yang, Desmond Oathes, Kristin Linn, Steven Bruce, Theodore Satterthwaite, Philip Cook, Emma Satchell, Haochang Shou, Yvette Sheline Dec 2017

Cognitive Behavioral Therapy Is Associated With Enhanced Cognitive Control Network Activity In Major Depression And Posttraumatic Stress Disorder, Zhen Yang, Desmond Oathes, Kristin Linn, Steven Bruce, Theodore Satterthwaite, Philip Cook, Emma Satchell, Haochang Shou, Yvette Sheline

Psychology Faculty Works

BACKGROUND: Both major depressive disorder (MDD) and posttraumatic stress disorder (PTSD) are characterized by depressive symptoms, abnormalities in brain regions important for cognitive control, and response to cognitive behavioral therapy (CBT). However, whether a common neural mechanism underlies CBT response across diagnoses is unknown. METHODS: Brain activity during a cognitive control task was measured using functional magnetic resonance imaging in 104 participants: 28 patients with MDD, 53 patients with PTSD, and 23 healthy control subjects; depression and anxiety symptoms were determined on the same day. A patient subset (n = 31) entered manualized CBT and, along with controls (n = …


An Assessment Of Frontal Lobe Activity And Bdnf Levels Following Concussion In Collegiate Athletes: A Near-Infrared Spectroscopy Study, Keara Kangas Dec 2017

An Assessment Of Frontal Lobe Activity And Bdnf Levels Following Concussion In Collegiate Athletes: A Near-Infrared Spectroscopy Study, Keara Kangas

All NMU Master's Theses

Impacts to the head that are associated with sports related injuries, can result in a mild traumatic brain injury (mTBI), known as a concussion. Previous research has assessed how mTBIs affect the brain, but these assessments are limited in their ability to directly measure the consequences of mTBI. Along with concussion assessments, only a few studies have used neuroimaging techniques to evaluate brain injury. This study utilized a neuroimaging technique that is inexpensive, non-invasive, and portable, to measure brain activity post-concussion. In particular, near-infrared spectroscopy (NIRS) was used to measure prefrontal cortex (PFC) activity during the dot-probe task of affective …


Life-Long Creativity: Changing The Narrative Of Aging And Retirement, Jennifer K. Gippel Dr Dec 2017

Life-Long Creativity: Changing The Narrative Of Aging And Retirement, Jennifer K. Gippel Dr

Creativity and Change Leadership Graduate Student Master's Projects

The current narratives and stereotypes around retirement and aging are both inaccurate and incomplete. The popular media regularly portrays retirees and older citizens as blissfully happy but bland; or physically feeble and forgetful. Rarely are they portrayed as achievers and vibrant problem solvers. Instead they are perceived by policy makers as a problem to be solved. This project offers a different narrative ― one that presents retirement and aging as a unique time of creative opportunity, possibility, and freedom to choose. The primary outcome of the project is two chapters of a book entitled: Retirement by design: How to discover …


Print Exposure Modulates The Effects Of Repetition Priming During Sentence Reading, Matthew W. Lowder, Peter C. Gordon Dec 2017

Print Exposure Modulates The Effects Of Repetition Priming During Sentence Reading, Matthew W. Lowder, Peter C. Gordon

Psychology Faculty Publications

Individual readers vary greatly in the quality of their lexical representations and consequently in how quickly and efficiently they can access orthographic and lexical knowledge. This variability may be explained, at least in part, by individual differences in exposure to printed language, as practice at reading promotes the development of stronger reading skills. The current eye-tracking experiment tests the hypothesis that the efficiency of word recognition during reading improves with increases in print exposure by determining whether the magnitude of the repetition priming effect is modulated by individual differences in scores on the Author Recognition Test (ART). Lexical repetition of …


Regulating Rumination By Anger: Evidence For The Mutual Promotion And Counteraction (Mpmc) Theory Of Emotionality, Jun Zhan, Fan Tang, Mei He, Jin Fan, Jing Xiao, Chang Liu, Jing Luo Dec 2017

Regulating Rumination By Anger: Evidence For The Mutual Promotion And Counteraction (Mpmc) Theory Of Emotionality, Jun Zhan, Fan Tang, Mei He, Jin Fan, Jing Xiao, Chang Liu, Jing Luo

Publications and Research

Unlike the strategy of cognitive regulation that relies heavily on the top-down control function of the prefrontal cortex (PFC), which was recently found may be critically impaired in stressful situations, traditional Chinese philosophy and medicine views different types of emotionality as having mutual promotion and counteraction (MPMC) relationships, implying a novel approach that requires less cognition to emotional regulation. Actually, our previous studies have indicated that anger responses could be successfully regulated via the induction of sadness, and this efficiency could not be influenced by stress, thus providing evidences for the hypothesis of “sadness counteracts anger” (SCA) proposed by the …


Parent-Teacher Communication About Children With Autism Spectrum Disorder: An Examination Of Collaborative Problem Solving, Gazi F. Azad, Mina Kim, Steven C. Marcus, David S. Mandell, Susan M. Sheridan Dr. Dec 2017

Parent-Teacher Communication About Children With Autism Spectrum Disorder: An Examination Of Collaborative Problem Solving, Gazi F. Azad, Mina Kim, Steven C. Marcus, David S. Mandell, Susan M. Sheridan Dr.

Department of Educational Psychology: Faculty Publications

Effective parent-teacher communication involves problem-solving concerns about students. Few studies have examined problem solving interactions between parents and teachers of children with autism spectrum disorder (ASD), with a particular focus on identifying communication barriers and strategies for improving them. This study examined the problem-solving behaviors of parents and teachers of children with ASD. Participants included 18 teachers and 39 parents of children with ASD. Parent-teacher dyads were prompted to discuss and provide a solution for a problem that a student experienced at home and at school. Parents and teachers also reported on their problem-solving behaviors. Results showed that parents and …


Elements Of Moral Functioning In Sport And School, Christopher Funk Nov 2017

Elements Of Moral Functioning In Sport And School, Christopher Funk

Dissertations

Moral functioning is complex and implicates numerous cognitive and affective processes. Drawing upon Rest’s four-component model of moral functioning and more recent dual-process accounts of cognition, the current study examined a model of moral functioning in both sport and school contexts. Specifically, drawing upon the empirical record, a model of moral functioning was proposed and tested wherein moral identity influenced the adoption of specific contesting orientations, which, in turn, influenced prosocial and antisocial behaviors, both directly and indirectly via moral foundations and moral disengagement. Fit of the model was moderately strong in both contexts, though significant contextual differences emerged, both …


Contributions Of Appetitive And Aversive Motivational Systems To Decision-Making, Heather E. Soder Nov 2017

Contributions Of Appetitive And Aversive Motivational Systems To Decision-Making, Heather E. Soder

USF Tampa Graduate Theses and Dissertations

Optimal decision-making entails outcome evaluation, comparing received costs and benefits with predicted costs and benefits. The anterior cingulate cortex (ACC), a brain area with major connections to the appetitive and aversive motivation systems, may provide the neural substrate of this evaluation process. One way to measure the relative contribution of these systems on decision-making is to measure individual differences in risk-taking behaviors. For individuals who make risky choices, this evaluation step may be biased: some show a preference for immediate, short-term rewards (increased appetitive system), while devaluing the long-term consequences of their choices (decreased aversive system). However, most studies supporting …


Preliminary Evidence For The Impact Of Combat Experiences On Gray Matter Volume Of The Posterior Insula, Ashley N. Clausen, Sandra A. Billinger, Jason-Flor V. Sisante, Hideo Suzuki, Robin L. Aupperle Nov 2017

Preliminary Evidence For The Impact Of Combat Experiences On Gray Matter Volume Of The Posterior Insula, Ashley N. Clausen, Sandra A. Billinger, Jason-Flor V. Sisante, Hideo Suzuki, Robin L. Aupperle

Department of Educational Psychology: Faculty Publications

Background: Combat-exposed veteran populations are at an increased risk for developing cardiovascular disease. The anterior cingulate cortex (ACC) and insula have been implicated in both autonomic arousal to emotional stressors and homeostatic processes, which may contribute to cardiovascular dysfunction in combat veteran populations. The aim of the present study was to explore the intersecting relationships of combat experiences, rostral ACC and posterior insula volume, and cardiovascular health in a sample of combat veterans.

Method: Twenty-four male combat veterans completed clinical assessment of combat experiences and posttraumatic stress symptoms. Subjects completed a magnetic resonance imaging scan and autosegmentation using FreeSurfer was …


It's More Than Self-Presentation: Mum Effects Can Reflect Private Discomfort And Concern For The Recipient, Jayson L. Dibble Nov 2017

It's More Than Self-Presentation: Mum Effects Can Reflect Private Discomfort And Concern For The Recipient, Jayson L. Dibble

Faculty Publications

Is the reluctance to share bad news (i.e., the MUM effect) motivated more by a public display or private concern, and does it benefit mainly the messenger or the recipient? An experiment (N = 309) that crossed good/bad news with three communication channels (face to face, text messaging, email) revealed that messenger reluctance was greatest under conditions of bad news and did not vary based on channel through which the recipient contacted the messenger. In contrast with earlier work, this MUM effect was more consistent with a private fear of distressing the recipient. Theoretical implications and limitations are discussed.


The Effect Of Text Color And Text Grouping On Attention And Short Term Recall Memory, Emily Haynes Nov 2017

The Effect Of Text Color And Text Grouping On Attention And Short Term Recall Memory, Emily Haynes

Honors College Research

This study sought to discover whether there was a connection between the attentional draw of a word, as represented by text color and grouping, and the likelihood of it being transferred into short term recall memory. College students at Harding University in Searcy, Arkansas were given one of six timed memory test scenarios and asked to recreate the list to the best of their ability. The students were then asked to complete a series of post-test questions designed to measure their perception of their own performance on the test. The students were also asked to complete a demographics questionnaire that …


Enrichment Of Putatively Damaging Rare Variants In The Dyx2 Locus And The Reading-Related Genes Ccdc136 And Flnc, Andrew K. Adams, Shelley D. Smith, Dongnhu T. Truong, Erik G. Willcutt, Richard K. Olson, John C. Defries, Bruce F. Pennington, Jeffrey R. Gruen Nov 2017

Enrichment Of Putatively Damaging Rare Variants In The Dyx2 Locus And The Reading-Related Genes Ccdc136 And Flnc, Andrew K. Adams, Shelley D. Smith, Dongnhu T. Truong, Erik G. Willcutt, Richard K. Olson, John C. Defries, Bruce F. Pennington, Jeffrey R. Gruen

Psychology: Faculty Scholarship

Eleven loci with prior evidence for association with reading and language phenotypes were sequenced in 96 unrelated subjects with significant impairment in reading performance drawn from the Colorado Learning Disability Research Center collection. Out of 148 total individual missense variants identified, the chromosome 7 genes CCDC136 and FLNC contained 19. In addition, a region corresponding to the well-known DYX2 locus for RD contained 74 missense variants. Both allele sets were filtered for a minor allele frequency ≤0.01 and high Polyphen-2 scores. To determine if observations of these alleles are occurring more frequently in our cases than expected by chance in …


Trajectories Of Quality Of Life, Life Satisfaction, And Psychological Adjustment After Prostate Cancer, Suzanne K. Chambers, Shu K. Ng, Peter C. Baad, Joanne F. Aitken, Melissa K. Hyde Oct 2017

Trajectories Of Quality Of Life, Life Satisfaction, And Psychological Adjustment After Prostate Cancer, Suzanne K. Chambers, Shu K. Ng, Peter C. Baad, Joanne F. Aitken, Melissa K. Hyde

Research outputs 2014 to 2021

Background

To describe trajectories of health-related quality of life (QoL), life satisfaction, and psychological adjustment for men with prostate cancer over the medium to long term and identify predictors of poorer outcomes using growth mixture models.

Methods

One-thousand sixty-four (82.4 % response) men diagnosed with prostate cancer were recruited close to diagnosis and assessed over a 72-month (6-year) period with self-report assessment of health-related QoL, life satisfaction, cancer-related distress, and prostate specific antigen anxiety. Urinary, bowel, and sexual function were also assessed using validated questionnaires.

Results

Poorer physical QOL was predicted by older age, lower education, lower income, comorbidities, and …


Reforming Recusal Rules: Reassessing The Presumption Of Judicial Impartiality In Light Of The Realities Of Judging And Changing The Substance Of Disqualification Standards To Eliminate Cognitive Errors, Melinda A. Marbes Oct 2017

Reforming Recusal Rules: Reassessing The Presumption Of Judicial Impartiality In Light Of The Realities Of Judging And Changing The Substance Of Disqualification Standards To Eliminate Cognitive Errors, Melinda A. Marbes

St. Mary's Journal on Legal Malpractice & Ethics

In recent years, high profile disqualification disputes have caught the attention of the public. In each instance there has been an outcry when a presiding jurist was asked to recuse but declined. Unfortunately, even if the jurist explains his refusal to recuse, the reasons given often are unsatisfying and do little to quell suspicions of bias. Instead, litigants, the press, and the public question whether the jurist actually is unbiased and doubt the impartiality of the judiciary as a whole. This negative reaction to refusals to recuse is caused, at least in part, by politically charged circumstances that cause further …


Cognitive Impairment, Depression, Anxiety, And Personality And Ms Patient Estimations Of Memory Function, Jordan Charboneau Oct 2017

Cognitive Impairment, Depression, Anxiety, And Personality And Ms Patient Estimations Of Memory Function, Jordan Charboneau

Dissertations (1934 -)

Multiple Sclerosis (MS) is an autoimmune disease of unknown etiology, characterized by a wide range of physical, cognitive, psychological, and behavioral symptoms. To effectively diagnose and treat MS, clinicians rely on patient reports of function to help identify and treat their problems (Kinsinger, Lattie, & Mohr, 2010). Specifically, self-reports of cognitive symptoms are a valuable source of information upon which clinicians depend (Van der Hiele, Spliethoff-Kamminga, Ruimschotel, Middelkoop, & Visser, 2012). While patient reports of cognitive functioning, including memory, are important, there has been substantial debate about the accuracy of such information. The present study investigated the association between general …


Biculturalism, Bilingualism, & Executive Function Among U.S. Latinos: Implications For Cognitive Reserve, Leticia G. Vallejo Oct 2017

Biculturalism, Bilingualism, & Executive Function Among U.S. Latinos: Implications For Cognitive Reserve, Leticia G. Vallejo

Dissertations (1934 -)

The current study was an exploratory investigation of the cultural constructs of biculturalism and bilingualism as predictors of executive function among a community-based sample of 25 older adult Latinos living in the U.S. The potential moderating effects of education and bicultural identity integration were also examined. Using regression analyses, biculturalism and bilingualism were examined independently as predictors of performance on three separate tasks of executive function: trail making tests, a phonemic fluency task, and a clock drawing task. Bilingualism was not found to predict performance on any of the executive functioning tasks. In the overall sample, biculturalism also was not …


Is Cooperative Memory Special? The Role Of Costly Errors, Context, And Social Network Size When Remembering Cooperative Actions, Jeffrey R. Stevens, Tim Winke Oct 2017

Is Cooperative Memory Special? The Role Of Costly Errors, Context, And Social Network Size When Remembering Cooperative Actions, Jeffrey R. Stevens, Tim Winke

Jeffrey Stevens Publications

Theoretical studies of cooperative behavior have focused on decision strategies, such as tit-for-tat, that depend on remembering a partner’s last choices. Yet, an empirical study by Stevens et al. (2011) demonstrated that human memory may not meet the requirements that needed to use these strategies. When asked to recall the previous behavior of simulated partners in a cooperative memory task, participants performed poorly, making errors in 10–24% of the trials. However, we do not know the extent to which this task taps specialized cognition for cooperation. It may be possible to engage participants in more cooperative, strategic thinking, which may …


Syntax And Semantics Of Perceptual Representation, James K. Quilty-Dunn Sep 2017

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 …


Cognitive And Affective Control Deficits In Adults With Autism Spectrum Disorder, Melissa-Ann Mackie Sep 2017

Cognitive And Affective Control Deficits In Adults With Autism Spectrum Disorder, Melissa-Ann Mackie

Dissertations, Theses, and Capstone Projects

Cognitive control constrains mental operations to prioritize information that reaches conscious awareness and is essential to flexible, adaptive behavior under conditions of uncertainty. However, cognitive control can be compromised by neurodevelopmental disorders such as autism spectrum disorder (ASD), which is characterized by the presence of social and communicative deficits, and restricted interests/repetitive behaviors. Although prior investigations have attempted to elucidate the nature of cognitive control deficits in ASD, whether there is an underlying deficit in cognitive and affective control associated with the symptom domains of ASD remains unclear. The present series of eight experiments presents an information theoretic framework for …


Examining The Concurrent And Predictive Relations Of Working Memory In Childhood Attention-Deficit/Hyperactivity Disorder, Ashley N. Simone Sep 2017

Examining The Concurrent And Predictive Relations Of Working Memory In Childhood Attention-Deficit/Hyperactivity Disorder, Ashley N. Simone

Dissertations, Theses, and Capstone Projects

Attention-deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by developmentally inappropriate levels of inattention and/or hyperactivity/impulsivity which lead to impairment in multiple settings (American Psychiatric Association, 2013). Childhood ADHD has been concurrently associated with various neurocognitive deficits and one in particular that has been under examination over the past several years is working memory (WM). WM is a temporary storage system that is responsible for maintenance and/or manipulation of information in order to complete complex cognitive and behavioral tasks. Researchers have postulated that WM is one of several potential endophenotypes of ADHD (Castellanos & Tannock, 2002) and/or that WM is …


Giving Students The Finger, David Moshman Sep 2017

Giving Students The Finger, David Moshman

Department of Educational Psychology: Faculty Publications

Does academic freedom protect giving students the finger? On August 25, University of Nebraska-Lincoln sophomore Kaitlyn Mullen set up a table on campus outside the student union to promote Turning Point USA, a campus-based libertarian/conservative organization. TPUSA is known for its Professor Watchlist, which seeks to “expose and document college professors who discriminate against conservative students and advance leftist propaganda in the classroom.” Before long, there were people demonstrating against her. Ultimately, Mullen was harassed and intimidated by several individuals employed to teach at UNL, with the apparent intent of suppressing her intellectual freedom. One of them labeled her a …


The Musicality Of The Water Lilies/La Musicalité Des Nymphéas (Library Resources), Holy Cross Libraries Sep 2017

The Musicality Of The Water Lilies/La Musicalité Des Nymphéas (Library Resources), Holy Cross Libraries

Library Resources for Campus Events

A bibliography of resources available through the Holy Cross Libraries which provide additional information related to the Iris and B. Gerald Cantor Art Gallery exhibition “Gabrielle Thierry: The Musicality of the Water Lilies/La Musicalité des Nymphéas” from Aug. 30 through Oct. 7.

Thierry’s series of eight large-scale paintings were inspired by her rediscovery of the “Water Lilies” landscapes by Claude Monet on view at the the Musée de l’Orangerie in Paris. With special permission from the museum, Thierry painted in front of Monet’s originals over a period of 18 months from 2010 to 2012, where she explored the inner musical …


Semantic Attention: Effects Of Modality, Lexicality And Semantic Content, David Britton Sep 2017

Semantic Attention: Effects Of Modality, Lexicality And Semantic Content, David Britton

Dissertations, Theses, and Capstone Projects

Since the discovery of the Stroop Effect in 1935 questions about the role of language vs. non-lexical stimuli in selective attention remain. Early researchers attributed the powerful distracting influence shown in the Stroop task, naming the color in which a spelled word is printed when incongruent with the color name the word spells, to an automaticity of language that gives it privileged access to meaning, but many others since have shown various ways to reduce or even reverse this distracting effect of an incongruent word. This study addresses this by using EEG to record neural activity along with reaction time …


Understanding The Role Of The Ventrolateral Prefrontal Cortex In Emotional Memory Using Transcranial Direct Current Stimulation And Transcranial Magnetic Stimulation, R. Rachel Weintraub-Brevda Sep 2017

Understanding The Role Of The Ventrolateral Prefrontal Cortex In Emotional Memory Using Transcranial Direct Current Stimulation And Transcranial Magnetic Stimulation, R. Rachel Weintraub-Brevda

Dissertations, Theses, and Capstone Projects

Emotional stimuli can have both beneficial and detrimental effects on memory, such that emotional stimuli can be distracting from current neutral working memory goals, while also leading to enhanced episodic memory for the distracting emotional stimuli. Recent evidence suggests that the ventrolateral prefrontal cortex (VLPFC) has multiple roles in the enhancing effects of emotion on memory through top-down/controlled processes, including 1) coping with negative distraction and 2) elaborative encoding of negative information. Additionally, previous research has alluded to hemispheric differences in the VLPFC (Chapter 1). However, previous research has been correlational, with no strong laterality tests of the VLPFC. Two …


The Effects Of Pre-Trial Event Stimulus Properties On Timing In The Peak Interval Procedure, Daniel A. Garces Sep 2017

The Effects Of Pre-Trial Event Stimulus Properties On Timing In The Peak Interval Procedure, Daniel A. Garces

Dissertations, Theses, and Capstone Projects

In the peak interval procedure, intruded conditioned stimuli produce shifts in peak/middle time towards later values, regardless of whether these stimuli are presented prior to or during the timing signal. Although the effects of during-trial stimulus properties—temporal location, duration, and salience—have been previously reported, no research exists on how before-trial stimulus properties influence the extent of shifts in middle time. In the present study, we manipulated within subjects both the temporal location and type (i.e., cue alone, response-independent reinforcer alone, or cue and response-contingent reinforcer together) of the pre-trial event. An individual-trial analysis suggested that the type of stimulus event …