Experimental Analysis of Behavior Commons^™

Using Object-Choice Tasks To Investigate Sensory Perception In Sunda Pangolins (Manis Javanica), Joshua Dipaola

Theses and Dissertations

Pangolins are one of the most heavily poached, yet least understood mammals in the world. In this study, we used an object-choice task to assess the ecological relevance and use of sensory information in Sunda pangolin foraging behavior. This is the first controlled experiment on pangolin behavior to our knowledge.

The Maze Of Personality: Latency And Electric Organ Discharge In A Mormyrid Fish, Gnathonemus Petersii Gunther 1862 (Mormyridae, Teleostei), Abbey C. Lipe

Theses and Dissertations

Personality is individual differences in behavior, consistent across contexts. Among Gnathonemus petersii we investigated, we hypothesized that fish could be grouped by: (1) slow/fast maze performance, (2) low/high electric frequencies, (3) correlated latency and frequency. Our first two hypothesis were not supported. Our third hypothesis was partially supported.

Experience-Dependent Changes In Nucleus Accumbens Activity Predict Cued Approach Learning: Contribution Of Nmda Receptors, Mercedes Vega Villar

Dissertations, Theses, and Capstone Projects

Animals learn associations between environmental cues and the natural rewards they predict (e.g., food, water, sex). As a result, reward-predictive cues come to trigger vigorous reward-seeking responses. Many neurons in the nucleus accumbens (NAc) become excited upon presentation of an already-learned reward-predictive cue. These NAc responses encode the motivational value of the cue and are necessary for the expression of the subsequent approach behavior. However, the precise temporal relationship between the emergence of cue-evoked excitations in the NAc and the acquisition of cued approach behavior remains unknown. In Experiment 1, NAc activity was recorded as rats learned to approach a …

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

Dissertations and Theses

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

Dressed To Impress: The Effect Of Victim Attire On Helping Behavior, Sergio W. Carvalho, Diogo Hildebrand, Sankar Sen

Publications and Research

Charitable organizations often rely on pictures of victims to raise support for their causes. We examine the effect of donor perceptions of a novel aesthetic element of a victim’s physical appearance – his/her attire – on helping. In line with our theorizing, a field study, a survey and an experiment, together, show that donor perceptions that a victim is well attired reduces helping by diminishing her perceived need. Moreover, we show that this negative effect of neat attire on helping behavior is weaker for more physically attractive victims than for their less attractive counterparts. These findings establish a victim’s attire …

Judging Facial Expressions Of Emotion: Effects Of Gender, Raine Palladino

Theses and Dissertations

This study examined how quickly people recognize happy, neutral or angry emotional expressions on faces that varied in gender presentation and femininity/masculinity of facial features. Facial features influenced judgments of emotion more for women than men. Neutral expressions were more likely seen as angry on a woman’s face.

Competitive Frontoparietal Interactions Mediate Implicit Inferences, Martijn E. Wokke, Tony Ro

Publications and Research

Frequent experience with regularities in our environment allows us to use predictive information to guide our decision process. However, contingencies in our environment are not always explicitly present and sometimes need to be inferred. Heretofore, it remained unknown how predictive information guides decision-making when explicit knowledge is absent and how the brain shapes such implicit inferences. In the present experiment, 17 human participants (9 females) performed a discrimination task in which a target stimulus was preceded by a predictive cue. Critically, participants had no explicit knowledge that some of the cues signaled an upcoming target, allowing us to investigate how …

The Influences Of Education, Antisocial Behavior, And Involvement In The Criminal Justice System On Adult Legal Understanding, Lily Alpers, Mark Fondacaro

Student Theses

The current study examined the legal understanding and decision-making capacities of young adults compared to older adults. Furthermore, the current study examined these two age groups on the basis of a history of criminal justice involvement, antisocial behavior, and education level, in order to determine whether these variables also affect legal understanding and decision-making. One hundred and one subjects participated in this study, grouped by age into younger adults (18-34 years old) and older adults (35 years and older). The results of the current study found that participants with the lowest levels of education performed more poorly on the measure …

Contextually Modulated Avoidance Behavior In Rats Post-Pavlovian Extinction, Lauren Branigan

Theses and Dissertations

The following study sought to examine the psychological substrates of renewal (e.g.., context dependent extinction processes) for conditioned avoidance behaviors in rats. Using signaled active avoidance conditioning, rats acquired two-way shuttle responding, to two different auditory stimuli. These behaviors were then extinguished through exposure to the auditory stimuli where shuttling behavior was now without consequence. Subjects were then tested for renewal of avoidance in three distinct renewal sequences (e.g., ABA vs ABB, AAB vs AAA, and ABC vs ABB) in three separate groups of rats. It was found that subjects showed more responding to a stimulus presented outside of its …

The Impact Of Working Memory Load And Anxiety On Attention Bias Modification Training, David Lloyd Yap

Theses and Dissertations

The effect of attention bias modification training (ABMT) on anxiety-related attention bias (AB) in a large (N=204) non-clinical sample was sensitive to working memory load (WML). ABMT produced expected changes in AB in the low-WML, low-anxiety group only. High WML and high anxiety alone and in interaction disrupted ABMT.

Predicting Child Molester Typologies: Can Control Methods, Violence, And Location Predict Mtc:Cm3 Axis I Typology?, Gabriel R. Perez

Student Theses

Child molesters have been a key focus of public fear so much that many policies have been created that focus on reducing public panic rather than being supported by empirical evidence. Knowing the psychological motivations and patterns of this particular population is important in order to advance research that can affect future investigations, policies and laws concerning the safety of the public. The purpose of this study was to determine whether the use of crime scene characteristics can accurately predict child molester typology using the MTC:CM3 Axis I Fixation and Social Competence levels. The crime scene characteristics: control methods (use …

The Effect Of An Extinction Procedure On Level Of Responding To Visual Stimuli In An Evaluative Conditioning Procedure, Allison Hirsch

Dissertations, Theses, and Capstone Projects

Evaluative conditioning is a type of learning that results in the acquisition of likes and dislikes in humans. The procedure that produces evaluative learning is similar to that of Pavlovian conditioning. A consistent observation is that evaluative conditioned responses are less sensitive to extinction procedures than would be expected given the Pavlovian-type conditioning procedure used for acquisition. The present study sought to determine what the effect of an extinction condition was on the level of responding to visual conditioned stimuli in a visual-gustatory evaluative conditioning paradigm. Two dependent measures were used: an explicit measure, and a choice-based preference measure. The …

Dancing, Mindfulness, And Our Emotions: Embracing The Mind, Body, And Sole, Alisha M. Collins

Dissertations, Theses, and Capstone Projects

This capstone project examines dance, as an intervention and mindfulness practice that assists with managing our emotions. There is a need for dance therapy in social institutions such as, healthcare facilities, schools, and community centers. Dance therapy has the potential to reduce negative emotions, create mindfulness, improve self-expression, and promote a healthy well-being. I am proposing that dance therapy is applied as a regular practice in social institutions to develop mindfulness and promote emotional stability.

In this study, I argue that dance therapy can contribute to our well-being long term. In addition to this written thesis, a visual component of …

Some Like It Hot: The Effect Of Serving Temperature On Perceived Caloric Content And Intent To Purchase Complementary Food, Sara Baskentli

Dissertations, Theses, and Capstone Projects

This research introduces the serving temperature bias, which is defined as the belief that a food or beverage served hot has more calories and is considered more fattening than the same item served cold. Six studies, including an observational field study and follow-up controlled experiments, demonstrate that people indeed hold the serving temperature bias. This belief is grounded in the conceptual associations between warm foods and beverages and consumers’ affiliative semantic associations regarding home and hearth - concepts captured by the phrase “homelike.” Specifically, hot foods and beverages are perceived to be labor of love and reminder of home (homelike) …

Social Influences On Songbird Behavior: From Song Learning To Motion Coordination, Iva Ljubičić

Dissertations, Theses, and Capstone Projects

Social animals learn during development how to integrate successfully into their group. How do social interactions combine to maintain group cohesion? We first review how social environments can influence the development of vocal learners, such as songbirds and humans (Chapter 1). To bypass the complexity of natural social interactions and gain experimental control, we developed Virtual Social Environments, surrounding the bird with videos of manipulated playbacks. This way we were able to design sensory and social scenarios and test how social zebra finches adjust their behavior (Chapters 2 & 3). A serious challenge is that the color output of a …

The Effects Of Presession Attention On The Acquisition Of Tacts And Intraverbals, Mirela Cengher

Dissertations, Theses, and Capstone Projects

This study examined the effects of presession attention on the acquisition of tacts (Experiment 1) and intraverbals (Experiment 2) in children with Autism Spectrum Disorders. There were 3 conditions in each experiment. In the first 2 conditions, the experimenter first exposed the participants to a 15-min interval of either presession attention (PA) or no presession attention (NPA), then immediately conducted a teaching session. The third condition was a control condition, which involved no pressession interval or teaching procedures. The consequence for emitting tacts and intraverbals consisted of different forms of attention (e.g., praise and clapping). Across experiments, all participants acquired …

Mechanisms Of Navigation In Fiddler Crabs: An Analysis Of Allocentric And Egocentric Contributions, Stephen G. Volz

Dissertations, Theses, and Capstone Projects

Navigation in biological systems is a complex task-set that involves learning processes and may include constructing representations of features of their environment. Across the animal kingdom, different learning mechanisms have evolved to similar spatial problems. The extent to which mechanisms are conserved across taxa are an important research area that can guide our understanding of the cognitive dimensions of navigation. Recent studies of mammals, birds, and arthropods has found that these animals often attend to multiple forms of sensory cues, and to either integrate the solutions generated by these cues, or at times prefer one form of cue over another. …

Harm And Victim Age As Factors In The Determination Of Intentionality And Culpability, Donal David Barnard Jr.

Dissertations, Theses, and Capstone Projects

In the United States criminal justice system, jurors are directed to determine a defendant’s guilt beyond a reasonable doubt by establishing both the act of committing a crime (actus reus) and the culpable mental state of the defendant (mens rea), that is, the defendant’s intentionality. The role of a juror in a criminal case is that of a factfinder, deciding whether the two elements of the crime have been met. Criminal cases where jurors are asked to decide the facts vary in the harm that resulted. The more severe the harm, the greater the perceived injustice. This …

Roles Of Gabab, Muscarinic And Nicotinic Receptor Signaling In The Acquisition And Expression Of Fructose And Fat-Conditioned Flavor Preferences And Acquisition Of Quinine-Conditioned Flavor Avoidances In Rats, Francis M. Rotella

Dissertations, Theses, and Capstone Projects

In addition to increased intake of sweet solutions by mammals, learning, particularly classically-conditioned “Pavlovian-like” learning, also plays an important role. An orosensory conditioned flavor preference (CFP) can be elicited by pairing one novel flavor (conditioned stimulus, CS+) with a fructose solution and a second novel flavor (CS-) with a saccharin solution. Rats will prefer the CS+ flavor in a subsequent 2-bottle choice test with both flavors mixed in saccharin. Previous pharmacological analyses revealed that systemic administration of dopamine (DA) D1 and D2 as well as NMDA, but not opioid, receptor antagonists eliminated the acquisition (learning) of fructose-CFP. Further, expression of …

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 …

Effects Of Fluoxetine On Social And Startle Behavior In The African Cichlid Astatotilapia Burtoni, Stephanie Shih

Theses and Dissertations

The commonly prescribed antidepressant Prozac (fluoxetine) is found in waste water and affects aquatic animals. Here we ask how social hierarchy and startle behavior in an African cichlid fish community is impacted by chronic fluoxetine exposure. Results indicate reduced aggression and startle rates, implying possible ecological consequences.

Using Conditioned Place Preference To Investigate Changes In The Rewarding Effects Of Running And Eating Following Activity-Based Anorexia, Daniella Plaksiy

Theses and Dissertations

We used conditioned place preference to investigate whether activity-based anorexia would enhance the rewarding effects of running, causing running to be more rewarding than eating. We found that food restricted mice showed a clear preference for the food-associated chamber, and a subset of activity-based anorexia mice preferred the wheel-associated chamber.

Reward Preferences In Domestic Horses (Equus Caballus), Elizabeth E. Jaeger

Theses and Dissertations

The present study examined stress response in domestic horses (Equus caballus) to determine if horses show preference for either traditional or natural horsemanship training methods to test the hypothesis that natural horsemanship would induce less stress. Our results show that natural horsemanship rewards elicited lower stress response in horses.

Adult Human Perception Of Distress In The Cries Of Bonobo, Chimpanzee And Human Infants, Taylor Kelly

Theses and Dissertations

Adult human listeners rated their perceived distress based on the recorded vocalizations of bonobo, chimpanzee and human infants. Results found that bonobos were rated highest, chimpanzee and human infants in the high arousal context were rated as lower distress, and human babies in low arousal rated lowest.

The Effects Of Parametrically Manipulating The Ratio Of Complimentary To Constructive Feedback Statements On Performance, Amanda Mentzer

Dissertations, Theses, and Capstone Projects

Performance feedback is frequently discussed and implemented. Although shown to be quite effective, the characteristics of feedback have yet to be fully explored. Feedback ratio was explored in this study. While participants evaluated the postural safety of body positions presented on a computer screen, researchers measured the (a) number of s that it took participants to evaluate body positions (i.e., response time), (b) percent of correctly evaluated body positions (i.e., percent correct), and (c) extent to which participants appreciated the statements they received after responding (i.e., rating). Using a mixed-factorial design, researchers manipulated feedback within groups and feedback ratio between …

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

Dissertations, Theses, and Capstone Projects

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

Series Of Intermittent Heroin Injections Enhances Acquisition Of Operant Responding For Cues Paired With Natural Rewards, Jennifer Morrison

Dissertations, Theses, and Capstone Projects

Repeated-intermittent heroin use has been implicated in altering learning processes. Ranaldi et al. (2009) and Morrison et al. (2011) demonstrated that repeated-intermittent heroin administration leads to an enhancement of conditioned reinforcement by a food-paired light stimulus; however, the mechanism governing this effect is still largely unknown. The aims of the present study were to examine modifications in Pavlovian and operant associations for cues paired with natural rewards after a series of intermittent heroin injections. The study consisted of three phases: (1) Pavlovian Conditioning Phase (4 days)- in which three groups of rats had a light stimulus paired with food, and …

Physiological Regulation, Psychosocial Adversity, And Proactive Versus Reactive Aggression: A Longitudinal Study, Wei Zhang

Dissertations, Theses, and Capstone Projects

Two types of aggression in children and adolescents have been identified: reactive aggression (RA) and proactive aggression (PA). Despite the accumulating evidence suggesting differential temperamental, behavioral, cognitive, social-environmental, and neurobiological correlates in relation to the two types of aggression, no study has examined emotion regulation in children with RA vs. PA using psychophysiological approaches. In this study a sample of eight to 10 years old children participated in an emotion regulation task in which they were required to either induce or inhibit their emotions. They also reported their aggressive behavior using the Reactive-Proactive Aggression questionnaire (RPQ; Raine et al., 2006). …

The Effects Of Conspecifics On Dog (Canis Lupus Familiaris) Behavior During Behavioral Rehabilitation Treatments, Breanna Schultz

Theses and Dissertations

With high dog euthanasia rates increasing adoption is a significant animal welfare issue that finding methods to treat fearful animals from cruelty cases could help. This study examined the effects of conspecific presence on dogs in behavioral rehabilitation and found significant differences in boldness-fearfulness and solicitation and proximity behaviors.

The Effect Of Cognitive Load On Liars And Truth Tellers: Exploring The Moderating Impact Of Working Memory Capacity, Sarah Jordan

Dissertations, Theses, and Capstone Projects

Two studies are presented. The purpose of the first study is to examine the moderating impact of working memory capacity (WMC) on the cognitive load produced by both the type of statement a person is making and the manner in which the person is interviewed in a mock crime scenario. The moderating impact of suspects’ WMC (measured using the automated operation span task) on this process was also assessed. Suspects were instructed to tell the truth, a relatively easy lie, or a more difficult lie. Suspects were then interviewed in a relatively easy manner, a moderately more difficult manner, or …