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2016

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Articles 91 - 120 of 125

Full-Text Articles in Experimental Analysis of Behavior

An Exploration Of Target Event Encoding In A Predictive Learning Task With Humans: Integrated Or Separable Processing?, Natasha B. Nadler Feb 2016

An Exploration Of Target Event Encoding In A Predictive Learning Task With Humans: Integrated Or Separable Processing?, Natasha B. Nadler

Dissertations, Theses, and Capstone Projects

A major theme in the study of Pavlovian learning explores how attributes of a predicted event are represented and encoded. In Pavlovian conditioning, the conditioned stimulus (CS) is frequently assumed to associate with one or more of the various attributes of a motivationally significant unconditioned stimulus (US, e.g. it’s hedonic, motivational, and/or sensory features). The present research asks whether humans learn to predict and encode different aspects of motivationally neutral target events, namely, their specific sensory and temporal features in a separable or integrated manner. This question of how target events are encoded has implications for associative and timing models …

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Information Behavior In The Mobile Environment: An Overview, Ziming Liu Jan 2016

Information Behavior In The Mobile Environment: An Overview, Ziming Liu

School of Information Student Research Journal

As smartphones become ubiquitous, they increasingly influence the way in which students seek and use information. It is important to understand emerging information behavior as a result of wide spread use of smartphones. This paper provides an overview of information behavior in the mobile environment. Gender differences in mobile information seeking are discussed. People interact with mobile information in varied and unpredictable locations or while in transit. The mobility of information engagement is an important issue that human information theory should embrace.

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Repetitive Motor Movement, Social Responsiveness, And Global Development In Children With Autism Spectrum Disorder, Jenny Waltzer Jan 2016

Repetitive Motor Movement, Social Responsiveness, And Global Development In Children With Autism Spectrum Disorder, Jenny Waltzer

Theses and Dissertations

This study assessed whether specific repetitive motor movements (involving body), are associated with social abilities and global development. Additionally, we evaluated whether our observational measures of specific repetitive behaviors corresponded to standard diagnostic measures. Sixty-nine children, aged 32 to 82 months, with a diagnosis of autism spectrum disorder or autism were enrolled.

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The Effect Of Motor Involvement And Melody Truncation On Involuntary Musical Imagery, Stephanie Audrey Mccullough Jan 2016

The Effect Of Motor Involvement And Melody Truncation On Involuntary Musical Imagery, Stephanie Audrey Mccullough

Inquiry: The University of Arkansas Undergraduate Research Journal

The term “earworm,” also known as Involuntary Musical Imagery (INMI), refers to the phenomenon of an un-controllably repeating melody in one’s head. Though ubiquitous, it is comparatively under-researched in music cognition. Most existing studies have identified the defining characteristics of earworms, rather than explore their underlying mechanisms. This study investigates the hypothesis that overt motor involvement (humming, singing, tapping) and imagined motor involvement (imagining a continuation to an interrupted melody) will induce INMI more frequently than passive music listening. Four groups of participants were given instructions for different types of responses while listening to music; then they completed the same …

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Aging And Emotion Recognition: An Examination Of Stimulus And Attentional Mechanisms, Stephanie Nicole Sedall Jan 2016

Aging And Emotion Recognition: An Examination Of Stimulus And Attentional Mechanisms, Stephanie Nicole Sedall

ETD Archive

Emotion recognition is essential for interpersonal communication. However, previous research has suggested that older adults are not as accurate as younger adults in recognizing certain emotions, particularly negative facial expressions of anger, fear, and sadness. Including additional contextual information (e.g., manipulation of certain facial features) might help us better understand these age differences. The present study investigated how potential age differences in emotion recognition are influenced by stimulus factors (target eye gaze direction) as well as facial viewing patterns, cognitive functioning, and physiological processes. A sample of younger and older adults viewed static facial expressions depicting anger, fear, sadness, happiness, …

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Variability And Location Of Movement Endpoint Distributions: The Influence Of Instructions For Movement Speed And Accuracy, Abhishek Dey Jan 2016

Variability And Location Of Movement Endpoint Distributions: The Influence Of Instructions For Movement Speed And Accuracy, Abhishek Dey

ETD Archive

An influential theory of motor control predicts that targeted hand movements should be aimed at the target center and that the variability of movement endpoint distributions should fill the target region (Meyer et al., 1988). Because increases in the amount of movement endpoint variability correlates with increases in movement speed (Schmidt et al., 1979), centering the distribution on the target center and expanding variability to the limits of the target boundaries should allow for maximization of movement speed, without the production of movement errors (i.e., target misses). Slifkin and Eder (2016) recently found that those predictions only held over a …

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Human Vision Inspires Cortisol And Immune Behaviors, J. Forrest Olsen Jan 2016

Human Vision Inspires Cortisol And Immune Behaviors, J. Forrest Olsen

Departmental Honors Projects

Ten-minute slideshows of disease stimuli were presented to human participants who donated saliva samples before and after its completion. Much to our surprise, this research found cortisol decreased upon the visual perception of a disease threat, a response depicting the physiological consequences of Behavior Immune System activation. Even subliminal exposure to disease stimuli, totaling only 0.5 seconds over the ten-minute slideshow, was found to elicit a cortisol response.

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Informational Efficiency And The Reaction To Terrorism: A Financial Perspective, Nicholas Roland Jan 2016

Informational Efficiency And The Reaction To Terrorism: A Financial Perspective, Nicholas Roland

Honors Undergraduate Theses

The purpose of this study is to measure the message terror organizations hope to convey using the financial markets as a proxy of measurement to determine patterns within the marketplace and the effects on the terrorists’ ability to deliver a desired message due to the increased use of digital devices and access to instantaneous news, seen over the past decade. Using death count, geographic location, and event type, this study identified 109 attacks between 1985 and 2015 to be analyzed against 5 market indices and 5 securities. Measuring the effects within a 10-day sample window from the time of the …

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The Study Of The Adverse Effects Of Childhood Maltreatment, Katie A. Kennie Jan 2016

The Study Of The Adverse Effects Of Childhood Maltreatment, Katie A. Kennie

Honors Undergraduate Theses

This study explores the link between the presence of childhood trauma and adult criminal behavior. In this study, four distinct categories of childhood trauma (physical abuse, sexual abuse, psychological abuse, and neglect) were examined. In addition, this study conducts a comparative analysis of the United States crime rate with that of Switzerland and Japan. This study examines and compares the policies utilized in ensuring the protection of child welfare. The ultimate goal is to provide research which may build a foundation that will assist in creating and improving policies which will ensure a child's psychological health.

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Social Grief: A Grounded Theory Of Utilizing Status Updates On Facebook As A Contemporary Ritual, Celese Catania-Opris Jan 2016

Social Grief: A Grounded Theory Of Utilizing Status Updates On Facebook As A Contemporary Ritual, Celese Catania-Opris

Department of Family Therapy Dissertations and Applied Clinical Projects

The popular Social Networking Site, Facebook, offers its users the ability tocommunicate with others from all over the globe. Individuals can create a virtual identity for themselves enabling members to call, message, and locate others in a matter of seconds. The number of Facebook users appears to increase; yet, the number of members who die daily is not normally accounted. Facebook now permits the memorialization ofthe deceased’s profile. This allows members to continue commenting, sharing photos and videos, and visiting the deceased’s Facebook page. This trend led to the central question of this study, “What benefits, if any, are individuals …

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Cognitive Phenotypes And The Evolution Of Animal Decisions, Tamra C. Mendelson, Courtney L. Fitzpatrick, Mark E. Hauber, Charles H. Pence, Rafael L. Rodríguez, Rebecca J. Safran, Caitlin A. Stern, Jeffrey R. Stevens Jan 2016

Cognitive Phenotypes And The Evolution Of Animal Decisions, Tamra C. Mendelson, Courtney L. Fitzpatrick, Mark E. Hauber, Charles H. Pence, Rafael L. Rodríguez, Rebecca J. Safran, Caitlin A. Stern, Jeffrey R. Stevens

Faculty Publications

Despite the clear fitness consequences of animal decisions, the science of animal decision making in evolutionary biology is underdeveloped compared with decision science in human psychology. Specifically, the field lacks a conceptual framework that defines and describes the relevant components of a decision, leading to imprecise language and concepts. The ‘judgment and decision-making’ (JDM) framework in human psychology is a powerful tool for framing and understanding human decisions, and we apply it here to components of animal decisions, which we refer to as ‘cognitive phenotypes’. We distinguish multiple cognitive phenotypes in the context of a JDM framework and highlight empirical …

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Incremental Strategy-Oriented Feedback Promotes Positive Leadership Perceptions And Feedback Reactions, Lauren Murphy Jan 2016

Incremental Strategy-Oriented Feedback Promotes Positive Leadership Perceptions And Feedback Reactions, Lauren Murphy

Undergraduate Honors Thesis Collection

In our lab experiment, participants who received negative strategy-oriented feedback associated with an incremental theory had more positive perceptions of a feedback deliverer and the feedback itself compared to recipients of comfort-oriented feedback associated with an entity theory.

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Acute And Chronic Effects Of Inhalants In Intracranial Self-Stimulation, Matthew Tracy Jan 2016

Acute And Chronic Effects Of Inhalants In Intracranial Self-Stimulation, Matthew Tracy

Theses and Dissertations

Inhalants are a loosely defined diverse group of volatile substances which people abuse. Despite widespread misuse of inhalants, there are limited preclinical methods available to study the reinforcement-like properties of inhalants. One procedure which has demonstrated substantial promise as a tool to investigate inhalant pharmacology is the intracranial self-stimulation (ICSS) procedure. ICSS utilizes pulses of electrical stimulation to the mesolimbic reward pathway to serve as a temporally defined and controlled operant reinforcer with a highly adjustable efficacy. The first aim of the project was to characterize the effects of commonly abused inhalants: including toluene, trichloroethane, nitrous oxide, isoflurane and R134a …

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The Effect Of Neighborhood Size And Morphology In The Chinese Language, Long Nguyen Jan 2016

The Effect Of Neighborhood Size And Morphology In The Chinese Language, Long Nguyen

Honors Undergraduate Theses

The Neighborhood Size Effect (NSE), characterized as the effect in word determination based on changing one orthographic aspect of that word. The amount of words that can be created through such manipulation is called a neighborhood size (NS). Number of other factors such as frequency, how often a word appears and morphology, the combination of meaningful word units, have been suggested to have an overriding effect on NSE. In addition, there is a lack of research on NSE with non-alphabetical languages such as Chinese, which uses characters comprising of a multitude of semantic or phonetic markers. In this experiment, participants …

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Cynicism And Narcissism: Masking The Good Life?, Joshua B. Bell Jan 2016

Cynicism And Narcissism: Masking The Good Life?, Joshua B. Bell

EWU Masters Thesis Collection

"Gratitude is a virtue capable of conferring a constellation of benefits. Research on gratitude has mostly focused on these benefits, but in understanding the construct fully an examination of moderating factors and inhibitors is important. A recent study, utilizing a prospective design, revealed cynicism and narcissism as significant inhibitors of trait and state gratitude over time (Solom, Watkins, McCurrach, & Scheibe, 2016). The current study hoped to build upon those results by examining whether these two possible inhibitors affect grateful processing after a gratitude induction. I hypothesized that higher levels of cynicism and narcissism would moderate the experience of grateful …

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An Analysis Of Stakeholders Communication In Collaborative Software Development Projects, Wei Zhang Jan 2016

An Analysis Of Stakeholders Communication In Collaborative Software Development Projects, Wei Zhang

Dissertations, Master's Theses and Master's Reports

Software development is a multidisciplinary collaboration involving many stakeholders. However, existing software development processes exhibit many issues related to that collaboration. Because prior research on stakeholder analysis and teamwork revealed the importance of communication, this study analyzed stakeholder communication with reference to team activities as a social and cognitive process. The study’s goal was to understand the collaboration process during software development and to delineate factors that influence this process. We focused on communication between the software developers and their clients during the requirements gathering phase, the team process, and the inter-team and interdisciplinary collaboration, in particular between software engineers …

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Sexual Risk Taking Among Young Lgbt Individuals: Examining The Interplay Between Shame Memories And Fears Of Compassion, Elijah N. Johnson Jan 2016

Sexual Risk Taking Among Young Lgbt Individuals: Examining The Interplay Between Shame Memories And Fears Of Compassion, Elijah N. Johnson

EWU Masters Thesis Collection

Though there is a growing body of research concerning the impact that shame experiences can have on an individual, there is a paucity of research about what variables may mediate the relationship between central, shameful memories and resulting self-harming behavior. The purpose of this study was to explore fears of compassion as a possible mediator between shame memories and individuals' tendency to engage in risky sexual behavior, with an emphasis upon LGBT individuals, who on average are more likely to experience shaming experiences than non LGBT individuals. I predicted that fears of compassion would significantly strengthen the correlation between central …

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Exploring The Conceptual Overlap Of The Cognitive And Affective Theories Of Suicide, Leo D. Debroeck Jan 2016

Exploring The Conceptual Overlap Of The Cognitive And Affective Theories Of Suicide, Leo D. Debroeck

EWU Masters Thesis Collection

"To be able to help those contemplating suicide, the first step is to understand why people die by suicide. The cognitive theory of depression and the affective theory of psychache answer that question differently. Specifically, although they may have different parts in their theoretical systems, many of those parts overlap conceptually. The purpose of this study was to find if the two theories could be combined to create a more holistic theory between them. The application of each theory's aspects, in the form of standardized scales administered online to 427 college students, accounts for the nearly the same amount of …

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Effects Of Priming The Concept Of Luck On Task Persistence, Koryn R. Haight Jan 2016

Effects Of Priming The Concept Of Luck On Task Persistence, Koryn R. Haight

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Does feeling lucky influence the way we perform? Do we try harder and persist at tasks if we think luck is involved, or are we more prone to give up? To help answer these questions, this research examines the effect of priming the concept of luck on persistence. In particular, some participants completed a word descramble task designed to prime luck; others completed a neutral word descramble task. All participants then completed a set of reasoning puzzles, one of which they were told was ‘difficult’ but in reality was unsolvable. Persistence was measured by (a) the amount of time participants …

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Slam Poetry: An Online Intervention For Treating Depression, Spencer J. Ruchti, Mercedes Becker, Cara Mckee, Austin Herron, Alex Swalling Jan 2016

Slam Poetry: An Online Intervention For Treating Depression, Spencer J. Ruchti, Mercedes Becker, Cara Mckee, Austin Herron, Alex Swalling

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Given that depression is the “leading cause of disability worldwide,” and that less than 50% of people suffering from depression receive treatment, this study aims to provide support for a globally accessible depression treatment (WHO, 2012). The study conducted implemented an internet-based treatment for depression in which users were provided an opportunity to watch slam poetry videos related to mental health issues and write free responses regarding the content of the videos and their subjective experience of depression. Numerous studies provide support for the effectiveness of expressive writing, online mental health interventions, and slam poetry in particular for reducing symptoms …

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Electronic Cigarette User Plasma Nicotine Concentration And Puff Topography: Influence Of Liquid Nicotine Concentration And User Experience, Marzena M. Hiler Jan 2016

Electronic Cigarette User Plasma Nicotine Concentration And Puff Topography: Influence Of Liquid Nicotine Concentration And User Experience, Marzena M. Hiler

Theses and Dissertations

Electronic cigarettes (ECIGs) aerosolize an often nicotine-containing solution for user inhalation. ECIG nicotine delivery may depend on liquid nicotine concentration and user puffing behavior (topography). This study examined the relationship among liquid nicotine concentration, puff topography, and plasma nicotine concentration. Thirty-three ECIG-experienced and 31 ECIG-naïve individuals completed four laboratory sessions that differed by ECIG liquid nicotine concentration (0, 8, 18, or 36 mg/ml). A 3.3 volt “eGo” ECIG battery attached to a 1.5 Ohm dual coil “cartomizer” filled with 1 ml of 70% propylene glycol/30% vegetable glycerin nicotine liquid was used in two ECIG-bouts (10 puffs; 30 s IPI). Plasma …

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Measuring Self-Reported Exercise, Motivation To Exercise, And Sexism In Women, Sydney C. Jensen Jan 2016

Measuring Self-Reported Exercise, Motivation To Exercise, And Sexism In Women, Sydney C. Jensen

All Master's Theses

The harmfulness and pervasiveness of benevolent sexism is not a well disseminated issue, despite the belief that women are treated with equality in today’s society. The current study was designed to investigate whether exercise type and motivation to exercise would predict participants’ self-reported benevolent and hostile sexism, particularly in light of gender-related stereotypes about physical activity. A sample of 79 females completed an online survey that included questions about demographic characteristics, primary exercise type (i.e., cardiovascular exercise, weight-lifting, or hobbies), average number hours spent engaging in their primary exercise weekly, exercise motivations, and finally the Ambivalent Sexism Inventory which served …

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The Influence Of Emotion On Memory For A Crime, Taylor Langley Jan 2016

The Influence Of Emotion On Memory For A Crime, Taylor Langley

College of Graduate Studies: Theses & Dissertations

Researchers have reported errors in recall or recognition of witnessed events, accounting for the most common cause of false convictions of innocent people. Tiwari (2010) indicated that 25% of suspects who were identified in a line-up were actually innocent. Jurors are strongly influenced by eyewitness testimony and this can lead to false convictions. The validity of eyewitness identification is critical in cases in which it is used as evidence. In the current study we examined specific emotion states by inducing fear, surprise, and neutral moods. We hypothesized that participants in the Fear group would be least susceptible to the effects …

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Anger Maintenance And The Impact Of Shame, Attachment, And Experiential Avoidance, Ahva R. Mozafari Jan 2016

Anger Maintenance And The Impact Of Shame, Attachment, And Experiential Avoidance, Ahva R. Mozafari

EWU Masters Thesis Collection

Prior to the present study, the relationships between attachment, shame, experiential avoidance, and anger had not been empirically evaluated. This study investigated the influence of shame and attachment style on anger and experiential avoidance. Additionally, this study also explored the differences between those with anxious and avoidant attachment styles and their experiences of anger, as well as their ability to confront emotions. It was hypothesized that the combination of attachment, shame, and experiential avoidance would be predictors of anger. Finally, it was hypothesized that shame experiences would mediate the relationships between attachment and anger as well as attachment and experiential …

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Early Visual Perception Potentiated By Object Affordances: Evidence From A Temporal Order Judgment Task, Atsunori Ariga, Yuki Yamada, Yusuke Yamani Jan 2016

Early Visual Perception Potentiated By Object Affordances: Evidence From A Temporal Order Judgment Task, Atsunori Ariga, Yuki Yamada, Yusuke Yamani

Psychology Faculty Publications

Perceived objects automatically potentiate afforded action. Object affordances also facilitate perception of such objects, and this occurrence is known as the affordance effect. This study examined whether object affordances facilitate the initial visual processing stage, or perceptual entry processes, using the temporal order judgment task. The onset of the graspable (righthandled) coffee cup was perceived earlier than that of the less graspable (left-handled) cup for right-handed participants. The affordance effect was eliminated when the coffee cups were inverted, which presumably conveyed less affordance information. These results suggest that objects preattentively potentiate the perceptual entry processes in response to their affordances.

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Caffeinated And Non-Caffeinated Alcohol Use And Indirect Aggression: The Impact Of Self-Regulation, Brynn E. Sheehan, Ashley N. Linden-Carmichael, Cathy Lau-Barraco Jan 2016

Caffeinated And Non-Caffeinated Alcohol Use And Indirect Aggression: The Impact Of Self-Regulation, Brynn E. Sheehan, Ashley N. Linden-Carmichael, Cathy Lau-Barraco

Psychology Faculty Publications

Research shows that heavier alcohol use is associated with physical aggression. Scant research has examined the way in which alcohol relates to other forms of aggression, such as indirect aggression (e.g., malicious humor, social exclusion). Given the possible negative consequences of indirect aggression and the limited evidence suggesting alcohol use can elicit indirectly aggressive responses, research is needed to further investigate the association between drinking behavior and indirect aggression. Additionally, specific alcoholic beverages, such as caffeinated alcoholic beverages (CABs; e.g., Red Bull and vodka), may potentiate aggression above the influence of typical use, and thus warrant examination with regard to …

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The Neural Representation Of Duration In Event Concepts, Christopher Todd Hackett Jan 2016

The Neural Representation Of Duration In Event Concepts, Christopher Todd Hackett

Theses and Dissertations

Little is known about the neural basis of temporal concepts. Some have suggested that temporal concepts are grounded in spatial or temporal processes. Here we aimed to examine the representation of duration of event concepts, and compare them with judgments of object size, which may entail spatial processing. A 2x2 block design used event and object nouns as stimuli that were presented during functional imaging. Participants made judgments about event duration, object size, and event and object valence. In addition to whole-brain analyses, we examined activations in areas known to be involved in temporal processing and spatial processing. Knowledge of …

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Performance Of Individuals And Teams On Cryptographic Tasks: Factors That Affect The Consideration Of Alternative Strategies, Joseph Bihary Jan 2016

Performance Of Individuals And Teams On Cryptographic Tasks: Factors That Affect The Consideration Of Alternative Strategies, Joseph Bihary

Dissertations

The two studies presented here examined factors that might affect teams’ and individuals’ tendency to follow outside advice when attempting to solve a complex problem known as letters-to-numbers. Past research on group dynamics suggests that a lack of group consensus or homogeneity reduces group members’ confidence in their group’s abilities, and may lead members both to seek and accept advice from outside the group. Study 1 experimentally manipulated group diversity in task performance strategies in order to investigate whether dyads whose members have divergent perspectives are more likely than homogeneous dyads to consider and use a problem-solving strategy presented from …

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Iv Prenatal Nicotine Exposure Modulates Α6, Α7, And Α4Β2 Nicotinic Acetylcholinergic Receptor Subunit Expression In Male And Female Neonatal And Adolescent Rat Offspring: An Autoradiographical Analysis, Amanda Morgan Jan 2016

Iv Prenatal Nicotine Exposure Modulates Α6, Α7, And Α4Β2 Nicotinic Acetylcholinergic Receptor Subunit Expression In Male And Female Neonatal And Adolescent Rat Offspring: An Autoradiographical Analysis, Amanda Morgan

Theses and Dissertations

Maternal smoke exposure produces long-term adverse cognitive and behavioral outcomes in offspring, including an increased likelihood of attention problems (e.g., attention deficit hyperactivity disorder; ADHD) and drug abuse. Preclinical research shows that gestational exposure to nicotine, the primary psychoactive compound in tobacco smoke, influences the neurodevelopment of attention and reward neuronal circuits. This study investigated hypotheses about five brain regions, to determine if prenatal nicotine (PN) exposure altered expression of nicotinic acetylcholine receptors (nAChRs). A low dose, intravenous nicotine (IV) exposure method was used to administer nicotine (0.05 mg/kg/injection) or saline, 3x/day on gestational days 8–21 (Treatment). Brain tissue was …

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Structural, Functional, And Behavioral Alterations To The Dopamine System In The Female Hiv-1 Transgenic Rat, Robert Francis Roscoe Jr. Jan 2016

Structural, Functional, And Behavioral Alterations To The Dopamine System In The Female Hiv-1 Transgenic Rat, Robert Francis Roscoe Jr.

Theses and Dissertations

HIV-associated cognitive disorders continue to affect approximately 25 million individuals worldwide, and its prevalence is expected to increase as the lifespan of HIV-1 infected individuals continues to improve. The HIV-1 transgenic rat expresses 7 of the 9 genes that encompass the virus, and is an appropriate model for studying chronic HIV-1 infection at a level that is controlled through combined antiretroviral therapy. Psychostimulant abuse is known to exacerbate HAND symptomology, but the psychostimulant methylphenidate is a first line of treatment for HIV associated cognitive inhibition. Dopamine transport abnormalities in the HIV-1 Tg rat have been well characterized through behavioral testing; …

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