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Activating The Biological And Behavioral Immune Systems, Julia Christensen Jan 2015

Activating The Biological And Behavioral Immune Systems, Julia Christensen

Departmental Honors Projects

Psychology recognizes two distinct facets of the immune system: the biological immune system (BIO), covering all processes of the typical immune system, and the behavioral immune system (BEH), a set of cognitive, emotional, and behavioral responses to environmental stimuli. Research on this dual immune system indicates that each is capable of influencing the other (Schaller & Park, 2011). For example, perception of illness in others can activate the sympathetic nervous system (Schaller, Miller, Gervais, Yager, & Chen, 2010). Furthermore, evidence suggests that these two systems are capable of influencing moral judgment (Inbar, Pizarro, & Bloom, 2008). This study aims to …

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Javan Gibbon (Hylobates Moloch) Non-Vocal Social Communication And Gesture Use With Conspecifics, Melanie Bell Jan 2015

Javan Gibbon (Hylobates Moloch) Non-Vocal Social Communication And Gesture Use With Conspecifics, Melanie Bell

All Master's Theses

I explored gestures used by captive Javan gibbons (Hylobates moloch) at the Gibbon Conservation Center (Santa Clarita, CA). I hypothesized that a sender gibbon’s gesture modality would vary with the recipient gibbon’s attentional state and the sender would be equally likely to use all modalities (tactile, visual, actions, and facial expressions) when the recipient was attending (facing the sender), but would use more tactile gestures and actions when the recipient was non-attending (oriented away from the sender). I collected data from 10 individuals using all-occurrences sampling and an ethogram to score behaviors from video recordings. In 1,143 interactions, …

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A Comparison Of Chimpanzee (Pan Troglodytes) Responses To Caregiver Use Of Positive Reinforcement Training (Prt) And Species-Specific Behaviors (Ssb), Whitney D. Emge Jan 2015

A Comparison Of Chimpanzee (Pan Troglodytes) Responses To Caregiver Use Of Positive Reinforcement Training (Prt) And Species-Specific Behaviors (Ssb), Whitney D. Emge

All Master's Theses

The present study compared the effects of positive reinforcement training (PRT) and unstructured interactions (UI) on chimpanzee (Pan troglodytes) behavior. In the PRT condition, a caregiver interacted with a chimpanzee to condition behaviors for 10 min. In the UI condition, a caregiver interacted without PRT for 10 min. Participants were five chimpanzees in a sanctuary setting. Chimpanzees were also videotaped for 10 min after trials (PTP) and for 10 min in a matched control (MC) period on a different day. From these videotapes experimenters coded chimpanzee behaviors and calculated durations in behavioral contexts. Chimpanzees spent a significantly higher …

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Examining Memory Consolidation And Reconsolidation In An Appetitive Pavlovian Task, Jonathan J. Chow Jan 2015

Examining Memory Consolidation And Reconsolidation In An Appetitive Pavlovian Task, Jonathan J. Chow

Theses and Dissertations--Psychology

Memory plays an important role in defining how one behaves. The neurobiological mechanisms of memory have been studied extensively in animal models and the NMDA glutamate receptor has been identified to play an important role in the consolidation and reconsolidation of appetitive memories. Certain memories, depending on what was learned, can function differently and can be more difficult to disrupt based on a number of factors. Currently, no study has examined whether or not a reward-predictive stimulus attributed with incentive value is more difficult to disrupt than a stimulus that functions as a general reward-predictor. To determine the role of …

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Buzzfeed To Behavior: In Search Of Sustainable Spillover From Happiness-Based Information Interventions, Leah Gerber Jan 2015

Buzzfeed To Behavior: In Search Of Sustainable Spillover From Happiness-Based Information Interventions, Leah Gerber

Undergraduate Honors Thesis Collection

Humans go to great lengths to bolster happiness, whether it be for a t1eeting moment or for a more abiding sense of psychological well-being. Current research suggests that one way to increase human happiness is through spending time in nature (Zelenski & Nisbet, 2014). It is important to note that human happiness is a multifaceted construct, with both affective and cognitive components (Zelenski & Nisbet, 2014). In this study we aimed to examine both the affective and cognitive components of happiness-in other words, hedonic happiness and eudaimonic happiness-in order to add to the burgeoning body of literature that is environmental …

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Stability And Change: Stress Responses And The Shaping Of Behavioral Phenotypes Over The Life Span, Michael B. Hennessy, Sylvia Kaiser, Tobias Tiedtke, Norbert Sachser Jan 2015

Stability And Change: Stress Responses And The Shaping Of Behavioral Phenotypes Over The Life Span, Michael B. Hennessy, Sylvia Kaiser, Tobias Tiedtke, Norbert Sachser

Psychology Faculty Publications

In mammals, maternal signals conveyed via influences on hypothalamic-pituitary-adrenal (HPA) activity may shape behavior of the young to be better adapted for prevailing environmental conditions. However, the mother's influence extends beyond classic stress response systems. In guinea pigs, several hours (h) of separation from the mother activates not only the HPA axis, but also the innate immune system, which effects immediate behavioral change, as well as modifies behavioral responsiveness in the future. Moreover, the presence of the mother potently suppresses the behavioral consequences of this innate immune activation. These findings raise the possibility that long-term adaptive behavioral change can be …

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Domestication Affects The Structure, Development And Stability Of Biobehavioural Profiles, Sylvia Kaiser, Michael B. Hennessy, Norbert Sachser Jan 2015

Domestication Affects The Structure, Development And Stability Of Biobehavioural Profiles, Sylvia Kaiser, Michael B. Hennessy, Norbert Sachser

Psychology Faculty Publications

Domestication is an evolutionary process during which the biobehavioural profile (comprising e.g. social and emotional behaviour, cognitive abilities, as well as hormonal stress responses) is substantially reshaped. Using a comparative approach, and focusing mainly on the domestic and wild guinea pig, an established model system for the study of domestication, we review (a) how wild and domestic animals of the same species differ in behaviour, emotion, cognition, and hormonal stress responses, (b) during which phases of life differences in biobehavioural profiles emerge and (c) whether or not animal personalities exist in both the wild and domestic form. Concerning (a), typical …

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The Effect Of A Neurotoxic Dose Of Methamphetamine On Attention And Response Learning In The Rat, Anja Kremer Jan 2015

The Effect Of A Neurotoxic Dose Of Methamphetamine On Attention And Response Learning In The Rat, Anja Kremer

Honors Theses

High doses of methamphetamine (neurotoxic doses) have been shown to have an effect on both attention and response learning. In previous literature, meth rats were found to have higher reaction times, and therefore, it has been concluded that meth may cause a deficit in response learning. Our study, using modal initiation time as a measure of response learning, found no effects of methamphetamine or training condition on mode. Studies have also shown positively skewed reaction time distributions, which have been defined as attentional lapses. Our experiment used DevMode to measure these lapses. Although meth did not, training condition did have …

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Effect Of Atomoxetine On Attentional Lapses: An Animal Model, Pooja Chawla Jan 2015

Effect Of Atomoxetine On Attentional Lapses: An Animal Model, Pooja Chawla

Honors Theses

Atomoxetine (ATX) is a non-stimulant drug that has been used to treat symptoms of ADHD, including lapses of attention. These attentional lapses are depicted as a longer, positive skew in a reaction time distribution comprised of a normal and an exponential curve. The central tendency is thought to represent sensory-motor processing; while the positive skew is thought to be caused by attentional lapses in animal models. This positive skew is larger in individuals with ADHD and is thought to be a result of an increased number of attentional lapses. In the animal model used in this experiment reaction time is …

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How You Categorize Influences How Helpful You Are: The Effect Of Categorization Mindset On Consumers’ Social Decisions, Hsiao-Ching Kuo Jan 2015

How You Categorize Influences How Helpful You Are: The Effect Of Categorization Mindset On Consumers’ Social Decisions, Hsiao-Ching Kuo

USF Tampa Graduate Theses and Dissertations

This dissertation demonstrates how categorization mindsets (introduced by Ulkumen et al., 2010) moderate the altruistic behavior of consumers in decisions that have consequences to others besides oneself. Categorization mindset refers to a way of thinking about options, and is induced by simple sorting or categorization tasks. Ulkumen et al. (2010) has shown that mindsets can be unidimensional (in terms of being focused on a single, salient dimension) or multidimensional (in that both salient and non-salient dimensions are processed). Across three experiments, this dissertation finds that a multidimensional mindset (compared to a unidimensional mindset) enhances the preference for other-oriented options among …

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Effects Of A Brief Relaxation Intervention On Stress-Related Eating, Laura Lynn Mayhew-Purcell Jan 2015

Effects Of A Brief Relaxation Intervention On Stress-Related Eating, Laura Lynn Mayhew-Purcell

USF Tampa Graduate Theses and Dissertations

The experience of stress may contribute to increased food consumption and selection of unhealthy food options. Resource depletion theory suggests stress temporarily depletes resources needed to regulate behavior. Depletions of self-control may result in subsequent failure to regulate eating behaviors, which is particularly salient in restrained eaters. Restraint theory posits people high in dietary restraint require significant effort to control eating. Emotional eating theory further suggests palatable foods may be used to regulate emotional stress reactions. Relaxation exercises to mitigate stress reactions are recommended in eating and weight management programs, but lack quality scientific support. The current study examined the …

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Effects Of Nicotine Withdrawal On Motivation, Reward Sensitivity And Reward-Learning, Jason A. Oliver Jan 2015

Effects Of Nicotine Withdrawal On Motivation, Reward Sensitivity And Reward-Learning, Jason A. Oliver

USF Tampa Graduate Theses and Dissertations

Research on addictive behavior has traditionally emphasized the role that primary reinforcing effects of drugs of abuse plays in the development and maintenance of dependence. However, contemporary behavioral economic theory and animal models of nicotine dependence suggest the need for greater attention to the impact that response to alternative rewards may have on smoking behavior. The present study sought to investigate the impact of nicotine withdrawal on self-report, behavioral and neural indices of motivation, immediate response to rewards and the capacity to learn and modify behavior in response to positive and negative feedback. Heavy smokers (n = 48) completed two …

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What Are The Possible Causes For Autism Spectrum Disorder?, Rochel Preiserowicz Jan 2015

What Are The Possible Causes For Autism Spectrum Disorder?, Rochel Preiserowicz

The Science Journal of the Lander College of Arts and Sciences

Ever since the mid 1980’s when Autism Spectrum Disorder (ASD) started to become increasingly prevalent, researchers have been trying to find a possible cause for it. Autism Spectrum Disorder is a developmental disorder that manifests itself in children who are between 18-30 months old. People with autism have reduced social skills, and they have a difficult time communicating verbally and non-verbally. Autism is diagnosed through a questionnaire and other instruments that allow psychologists, psychiatrists, speech therapists, neurologists and many other doctors to determine if a child has a form of ASD. There are many theories about what causes autism. It …

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A Naturalistic Computational Model Of Human Behavior In Navigation And Search Tasks, Brandon S. Perelman Jan 2015

A Naturalistic Computational Model Of Human Behavior In Navigation And Search Tasks, Brandon S. Perelman

Dissertations, Master's Theses and Master's Reports - Open

Planning, navigation, and search are fundamental human cognitive abilities central to spatial problem solving in search and rescue, law enforcement, and military operations. Despite a wealth of literature concerning naturalistic spatial problem solving in animals, literature on naturalistic spatial problem solving in humans is comparatively lacking and generally conducted by separate camps among which there is little crosstalk. Addressing this deficiency will allow us to predict spatial decision making in operational environments, and understand the factors leading to those decisions. The present dissertation is comprised of two related efforts, (1) a set of empirical research studies intended to identify characteristics …

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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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The Influence Of Positive And Negative Death Attitudes On Medical Students' Empathy And Attitudes Toward End-Of-Life Care, Elizabeth Palumbo Jan 2015

The Influence Of Positive And Negative Death Attitudes On Medical Students' Empathy And Attitudes Toward End-Of-Life Care, Elizabeth Palumbo

PCOM Psychology Dissertations

This quantitative study employed a cross-sectional survey research design in order to examine the relationships between medical students’ death attitudes, empathy, and attitudes toward end-of-life care. The participants were 206 medical students currently enrolled in the Doctor of Osteopathic Medicine program at the Philadelphia College of Osteopathic Medicine, Philadelphia campus. Results indicated that there were no significant differences in the level of empathy between medical students who held strong positive death attitudes and medical students with strong negative death attitudes. However, results indicated that significant differences existed in attitudes toward end-of-life care between medical students who held strong positive death …

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The Impact Of Disturbed Sleep On Attention, Working Memory, And Reaction Time Tasks In Children With Adhd, Kathryn Robb M.A., M. S. Jan 2015

The Impact Of Disturbed Sleep On Attention, Working Memory, And Reaction Time Tasks In Children With Adhd, Kathryn Robb M.A., M. S.

PCOM Psychology Dissertations

Attention deficit/hyperactivity disorder is the most commonly diagnosed neurodevelopmental/psychiatric condition in childhood (CDC; Gruber, 2009). Disturbances in sleep can create a variety of impairments, both cognitive and behavioral, and may negatively affect attention, memory, visuo-spatial abilities, sustained attention and divergent intelligence (creativity) (Stores, 1999). The aim of the present study was to examine the role that sleep disturbances had on the cognitive performance of children with ADHD. Specifically, the possible relationship between poor sleep and children’s performance on working memory, attention and reaction time tasks and poor sleep were examined. Overall, in the current sample of 54 children who underwent …

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The Effectiveness Of A Computer-Assisted, Cognitive-Behavior Program For Treating Anxiety Symptoms In Children With Autism Spectrum Disorder, Jennifer A. Zabel Jan 2015

The Effectiveness Of A Computer-Assisted, Cognitive-Behavior Program For Treating Anxiety Symptoms In Children With Autism Spectrum Disorder, Jennifer A. Zabel

PCOM Psychology Dissertations

Autism Spectrum Disorder (ASD) is a complex and multifaceted, neurodevelopmental disorder that severely impacts children and families across a variety of settings. Prevalence rates of ASD are continuing to increase rapidly, with sizeable intervention and treatment costs placed on families and society. Further complicating the matter, many individuals with ASD also evidence co-occurring anxiety symptoms or disorders and tend to be at a higher risk for developing such problems when compared to other clinical populations or typically developing children. This study investigated the effectiveness of a computer-assisted CBT program, Camp Cope-A-Lot (CCAL), in regards to reducing anxiety symptoms in four …

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Impact Of Group Cognitive Behavior Therapy On Adolescents With Deficits In Inhibition, Jessica L. Morley Jan 2015

Impact Of Group Cognitive Behavior Therapy On Adolescents With Deficits In Inhibition, Jessica L. Morley

PCOM Psychology Dissertations

Existing literature connects impulse control dysfunction to high-risk behaviors and negative life outcomes. Evidence-based interventions for children and adolescents who are at-risk or who are displaying significant levels of impulsive behavior are necessary in order to promote self-control, and in turn, positive life outcomes. This study investigated the impact of an eight-week, school-based GCBT intervention on cognitive inhibition and behavioral impulsivity in adolescent participants. The intention of the study was to evaluate the trend in inhibition and impulsivity from baseline to post-intervention assessments across five middle school students dually enrolled in a residential treatment facility and a center-based emotional support …

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Neurocognitive Patterns, Symptom Clusters, And Premorbid Factors That Predict Protracted Recovery From Concussion In Females, Sarah Pulaski Jan 2015

Neurocognitive Patterns, Symptom Clusters, And Premorbid Factors That Predict Protracted Recovery From Concussion In Females, Sarah Pulaski

PCOM Psychology Dissertations

Concussion is an increasingly diagnosed injury that affects individuals of all ages. Although the underlying cause is unknown, research has demonstrated that females who sustain a concussion experience longer recoveries. Existing research has documented a relationship between age, gender, post-concussive headache and mental health conditions, and recovery; however, limited research has investigated the relationship between premorbid clinical variables and recovery. Research on post-injury neurocognitive declines and recovery has also demonstrated varied findings. Moreover, dizziness has been identified as significantly predictive of prolonged recovery, but no studies have investigated the effect of premorbid headache conditions on the development of dizziness. The …

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Post Traumatic Stress Disorder Symptoms And Intimate Relationships Of Female Survivors Of Sexual Assault: The Effects Of Treatment With Prolonged Exposure, Group, And Supportive Counseling Therapy, Gabrielle Rhoads Jan 2015

Post Traumatic Stress Disorder Symptoms And Intimate Relationships Of Female Survivors Of Sexual Assault: The Effects Of Treatment With Prolonged Exposure, Group, And Supportive Counseling Therapy, Gabrielle Rhoads

PCOM Psychology Dissertations

Theory and research suggest that post traumatic stress disorder (PTSD) symptoms may disrupt intimate relationships of survivors of trauma. Nevertheless, little empirical research has examined the role of PTSD and how it affects intimate relationships of survivors of sexual assault. This study utilized selected measures to examine the degree to which symptoms and treatment(s) for PTSD contribute to relationship satisfaction in female survivors of sexual assault. Overall, the severity of PTSD predicted relationship maladjustment at baseline, which is consistent with past research findings. More specifically, avoidance and arousal were found to be the most robust predictors of relationship maladjustment. This …

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The Psychological Benefits Of Animal Assisted Therapy On Elderly Nursing Home Patients, Sophia M. Elliott Jan 2015

The Psychological Benefits Of Animal Assisted Therapy On Elderly Nursing Home Patients, Sophia M. Elliott

Williams Honors College, Honors Research Projects

This literature review of the benefits of Animal Assisted Therapy (AAT) is centered on four scholarly articles published in major psychological journals discussing the reduction of loneliness, anxiety, depression, and cognitive impairments as well as the increase in well-being and happiness in the elderly nursing- home population. Many time these residents are abandoned by family and experience little- to- no interaction with others due to understaffing at these homes. My goal through this literature review was to bring attention to an alternative form of therapy for these patients. Often patients grow sick from depression and lose their sense of self-worth …

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Why Social Pain Can Live On: Different Neural Mechanisms Are Associated With Reliving Social And Physical Pain, Meghan L. Meyer, Kipling D. Williams, Naomi I. Eisenberger Jan 2015

Why Social Pain Can Live On: Different Neural Mechanisms Are Associated With Reliving Social And Physical Pain, Meghan L. Meyer, Kipling D. Williams, Naomi I. Eisenberger

Department of Psychological Sciences Faculty Publications

Although social and physical pain recruit overlapping neural activity in regions associated with the affective component of pain, the two pains can diverge in their phenomenology. Most notably, feelings of social pain can be re-experienced or "relived," even when the painful episode has long passed, whereas feelings of physical pain cannot be easily relived once the painful episode subsides. Here, we observed that reliving social (vs. physical) pain led to greater self-reported re-experienced pain and greater activity in affective pain regions (dorsal anterior cingulate cortex and anterior insula). Moreover, the degree of relived pain correlated positively with affective pain system …

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Gender-Bias And Its Influence On The Accuracy Of Eyewitness Identification Of Perpetrators, Elizabeth K. Conkey Jan 2015

Gender-Bias And Its Influence On The Accuracy Of Eyewitness Identification Of Perpetrators, Elizabeth K. Conkey

EWU Masters Thesis Collection

"Previous research has looked at how eyewitnesses can identify characteristically with victims of crimes, but few have looked at how eyewitnesses identify with the perpetrators in any capacity (Block, Greenberg, & Goodman, 2009). More specifically, few have looked at how gender-bias influences eyewitness identification of the perpetrator and characteristics (Butts, Mixon, Mulekar , & Bringmann, 1995; Wright & Sladden, 2003). The purpose of the current research was to look directly at how gender influenced the accuracy of eyewitness identification of a perpetrator. It was hypothesized that women would remember more details about a female perpetrator than a male perpetrator, and …

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What Happened Last Night? Sleep, Sex, And Recollection, Amanda Gale Renfro Jan 2015

What Happened Last Night? Sleep, Sex, And Recollection, Amanda Gale Renfro

Online Theses and Dissertations

Previous research has repeatedly illustrated the beneficial influence of sleep on memory processes. Further, evidence has demonstrated the power of sexual valance to enhance memory for certain types of stimuli. The present study investigated the possible interaction effect between sleep and sexual valance on recollection memory in 44 undergraduate and graduate student participants at Eastern Kentucky University, based upon a method by Alger, Lau, & Fishbein (2012); however, in the current study, recollection memory items were words received audibly rather than visually. Behavioral data, electroencephalography (EEG), and skin conductance data was collected to assess memory performance, sleep progress, autonomic nervous …

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Bridging The Gap: Exploring The Need For Better System Representations In Higher Education, Corinne P. Wright Jan 2015

Bridging The Gap: Exploring The Need For Better System Representations In Higher Education, Corinne P. Wright

Browse all Theses and Dissertations

Higher education constitutes a sociotechnical system. Some students enter with cultural experiences that support the new endeavor whereas others are woefully under-supported. Student preparedness often is tightly coupled with student background. Some ethnic minorities and students from impoverished backgrounds enter the university setting with a high risk of not persisting or completing their higher education pursuits (e.g., Kuh, Kinzie, Bridges, & Hayek, 2007). Traditional conceptualizations of risk identify immutable factors, such as SES, with little opportunity for immediate mitigation. Traditional interventions to mitigate risk include either fitting the student to the system (e.g., Tinto, 1993) or fitting the system to …

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The Effectiveness Of "The Tunnel Of Oppression": An Exposure Approach To Increasing Awareness Of Oppression Among Freshman Students At Wright State University, Jennifer B. Stoyell Jan 2015

The Effectiveness Of "The Tunnel Of Oppression": An Exposure Approach To Increasing Awareness Of Oppression Among Freshman Students At Wright State University, Jennifer B. Stoyell

Browse all Theses and Dissertations

While diversity-training programs have gained popularity in the US, limited research has been done to establish the effectiveness of these programs in increasing awareness of oppression. The present study explored the effectiveness of the Tunnel of Oppression in increasing awareness of oppression among freshman students at Wright State University. Participants (N= 1736) were given a survey before and after participating in the Tunnel where they rated their awareness of levels of oppression for nine different oppressed groups. Data for this survey was analyzed employing descriptive and non-parametric statistics to determine significance in change of scores (Wilcoxon Signed-Rank and Wilcoxon Rank-Sum) …

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The Influence Of The Single Stereotype On Moral Judgments, Peng Zhang Jan 2015

The Influence Of The Single Stereotype On Moral Judgments, Peng Zhang

Dissertations and Theses @ UNI

Stereotypes can powerfully influence people’s moral judgments. For example, stereotypes of atheists lead people to report immoral behavior as more consistent for atheists than Christians (Wright & Nichols, 2014). When targets are labeled as “obese” or “hippie”, perceivers morally judge them more harshly than targets who are not assigned such labels (Masicampo, Barth, & Ambady, 2014). However, limited research has examined how stereotypes of single people can influence perceivers’ moral judgments. Because of various negative stereotypes people hold about single people (Conley & Collins, 2002; DePaulo & Morris, 2005), it was anticipated that people would morally judge a single target …

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An Exploration Of The Wheel-Induced Feeding-Suppression, Stephen Benjamin Peckham Jan 2015

An Exploration Of The Wheel-Induced Feeding-Suppression, Stephen Benjamin Peckham

Theses and Dissertations (Comprehensive)

Anorexia nervosa is an enigmatic human condition typified by food-restriction that is often accompanied by extensive exercise. This has been modeled in rats in the wheel-induced feeding-suppression (WIFS) model. In this model, animals are given access to a running-wheel, which induces a volitional drop in food-consumption. Short periods of wheel access have induced a feeding-suppression which is effectively reversed by chlorpromazine administration (Adams et al., 2009). Recent attempts at replicating Adams et al.’s (2009) feeding-suppression have, however, been unsuccessful (Peckham et al., 2013). These attempts raised questions as to whether or not the existing methodology is most effective at suppressing …

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Influence Of Planning Resources On Gait Control In Parkinson’S Disease, Frederico P. Faria Jan 2015

Influence Of Planning Resources On Gait Control In Parkinson’S Disease, Frederico P. Faria

Theses and Dissertations (Comprehensive)

Movement disturbances in individuals with Parkinson’s disease (PD) have been associated with difficulties to plan complex actions. Performance of simple and complex actions overloads resources for individuals with Parkinson’s disease (PD). However, it is unclear if central resources required to plan gait adjustments while walking exacerbate gait disturbances of patients with PD. More specifically, it is unclear how gait impairments, sensory processing, and the dopaminergic system influence the load on processing resources (e.g. cognitive load) during the planning of step modifications. In order to investigate the relative influence of these factors on cognitive load and its impact on gait control, …

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