Digital Commons Network^™

Stranger Danger: Parenthood And Child Presence Increase The Envisioned Bodily Formidability Of Menacing Men, Daniel M.T. Fessler, Colin Holbrook, Jeremy S. Pollack, Jennifer Hahn-Holbrook

Psychology Faculty Articles and Research

Due to altriciality and the importance of embodied capital, children’s fitness is contingent on parental investment. Injury suffered by a parent therefore degrades the parent’s fitness both by constraining reproduction and by diminishing the fitness of existing offspring. Due to the latter added cost, compared to non-parents, parents should be more cautious in hazardous situations, including potentially agonistic interactions. Prior research indicates that relative formidability is conceptualized in terms of size and strength. As erroneous under-estimation of a foe’s formidability heightens the risk of injury, parents should therefore conceptualize a potential antagonist as larger, stronger, and of more sinister intent …

Muscle Tension Induced After Learning Enhances Long-Term Narrative And Visual Memory In Healthy Older Adults, Kristy A. Nielson, Laura L. Wulff, Timothy J. Arentsen

Psychology Faculty Research and Publications

Arousing events are better remembered than mundane events. Indeed, manipulation of arousal, such as by muscle tension, can influence memory even when it occurs shortly after learning. Indeed, our founding study showed this approach can raise delayed memory performance in older adults to a level comparable to that of unaided young adults. Yet, systematic studies, especially those investigating different modalities or types of memory, have not been done. This study investigated the effects of a brief bout of isometric exercise via handgrip on narrative and visuospatial episodic memory in healthy elders. Forty-seven participants completed the Logical Memory subtest of the …

The Quantified Self, Behind The Cover Art, Leslie Love Stone

The Transdisciplinary STEAM+ Journal

We lead quantified lives. The information we send and receive through our computers, CD players, and smart phones is coded in ones and zeroes. We exist as numerical accounts, license numbers, and login IDs. Anyone who has ever waited on hold for a live customer service representative understands the desire to be treated like a person, not a number. We each want acceptance for our inherent peculiarities and consideration for our circumstance—conditions we believe extrinsic to numbers.

Attention Deficit Associated With Early Life Interictal Spikes In A Rat Model Is Improved With Acth, Amanda E. Hernan, Abigail Alexander, Pierre-Pascal Lenck-Santini, Rod C. Scott

Dartmouth Scholarship

Children with epilepsy often present with pervasive cognitive and behavioral comorbidities including working memory impairments, attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder. These non-seizure characteristics are severely detrimental to overall quality of life. Some of these children, particularly those with epilepsies classified as Landau-Kleffner Syndrome or continuous spike and wave during sleep, have infrequent seizure activity but frequent focal epileptiform activity. This frequent epileptiform activity is thought to be detrimental to cognitive development; however, it is also possible that these IIS events initiate pathophysiological pathways in the developing brain that may be independently associated with cognitive deficits. These …

Clues Cue The Smooze: Rhyme, Pausing, And Prediction Help Children Learn New Words From Storybooks, Kirsten Read

Psychology

Rhyme, which is ubiquitous in the language experiences of young children, may be especially facilitative to vocabulary learning because of how it can support active predictions about upcoming words. In two experiments, we tested whether rhyme, when used to help children anticipate new words would make those words easier to learn. Two- to 4-year-old children heard rhyming stanzas naming novel monsters under three conditions: A non-rhyme condition in which novel monster names appeared as unrhymed elements within a rhymed stanza, a non-predictive rhyme condition in which the novel names were the rhymed element in the first line of a stanza, …

Educational Technology: Evaluation Of An Interactive Cd-Rom For Teaching And Learning Organic Reactions, Loranna K. Kitchen, Dr. Edward E. Green

Journal of Undergraduate Research

Advances in computer technology have affected many parts of our lives. The field of education is no exception. Increasingly, technology is used in schools to enhance students’ learning. Computer based learning programs offer students an opportunity for self-directed study to complement the instruction they receive in class. Teachers may also use educational technology in the classroom to more effectively teach students who respond to a wide variety of learning styles. With so many products on the market, both teachers and students need to know how to decide which products can help them in their teaching and learning. They must then …

Investigating Habits: Strategies,Technologies And Models, Kyle S. Smith, Ann M. Graybiel

Dartmouth Scholarship

Understanding habits at a biological level requires a combination of behavioral observations and measures of ongoing neural activity. Theoretical frameworks as well as definitions of habitual behaviors emerging from classic behavioral research have been enriched by new approaches taking account of the identification of brain regions and circuits related to habitual behavior. Together, this combination of experimental and theoretical work has provided key insights into how brain circuits underlying action-learning and action-selection are organized, and how a balance between behavioral flexibility and fixity is achieved. New methods to monitor and manipulate neural activity in real time are allowing us to …

Inhibition Of Lordosis In The Male, Paul C. Butler, G. J. Block

Journal of Undergraduate Research

This study was designed to examine the effects of exogenous gonadal hormones on the inhibition of lordotic behavior in estradiol benzoate (EB) primed and non-primed male rats. Adult male rats were gonadectomized and given one of four treatments, blank (Bk), testosterone (T), progesterone (P), or testosterone plus progesterone (T + P). Animals were then given 5 pg EB for three days prior to testing for lordotic behavior.

Neuropsychology Lab Rotations, Scott Steffensen

Journal of Undergraduate Research

Our objective in 2004-2005 was to provide undergraduate students with a nurturing, inspiring, yet productive research environment in the Neuropsychology Lab on the 12th floor of the Kimball Tower.

Personality Affects Learning And Trade-Offs Between Private And Social Information In Guppies, Poecilia Reticulate, Larissa Trompf, Culum Brown

Sentience Collection

The acquisition of information such as the location and quality of food, mates or shelter is a key survival requirement for animals. Individuals can acquire information through personal experience (private information) or through observing and interacting with others (social information). Environmental spatial and temporal heterogeneity can mean that sometimes social information conflicts with private knowledge. We tested how personality affected the importance placed on public versus private information in wild female guppies when these two information sources came into conflict. We found that boldness and sociality affected decisions to use conflicting social and private information. Bolder females used social information …

Activation Of Mglur2/3 Receptors In The Ventro-Rostral Prefrontal Cortex Reverses Sensorimotor Gating Deficits Induced By Systemic Nmda Receptor Antagonists., Bridget Valsamis, Michael Chang, Marei Typlt, Susanne Schmid

Brain and Mind Institute Researchers' Publications

Prepulse inhibition (PPI) of acoustic startle is an operational measure of sensorimotor gating, which is disrupted in schizophrenia. NMDA receptor (NMDAR) antagonist induced PPI disruption has become an important pharmacological model for schizophrenia; however, knowledge of the underlying mechanism remains incomplete. This study examines the role of NMDAR in the caudal pontine reticular nucleus (PnC) and the medial prefrontal cortex (mPFC) in NMDARs antagonist induced PPI deficits, as well as the NMDA receptor subtypes involved. We administered the NMDA antagonist MK-801 locally into the caudal pontine reticular formation (PnC), where the PPI mediating pathway converges with the primary startle pathway, …

The Effect Of Sleep-Dependent Consolidation On Pattern Separation And Pattern Completion In Delayed Retrieval, Jesse Ray James

Theses and Dissertations

While people sleep, the brain replays the same neural firings that resulted from waking activities that day. This results in greater memory strength following a sleeping delay than a waking delay. The current project built upon this fact in a series of three experiments. Experiment 1. Although previous research has demonstrated a benefit of sleep to memory strength, the literature has not established the impact of sleep on memory specificity. Computational models of medial temporal lobe function posit that discrimination and generalization across similar memories are accomplished through processes known as pattern separation and pattern completion, respectively. To discover whether …

Direct And Relational Representation During Transitive List Linking In Pinyon Jays (Gymnorhinus Cyanocephalus), Cynthia Wei, Alan Kamil, Alan B. Bond

Alan Bond Publications

The authors used the list-linking procedure (Treichler & Van Tilburg, 1996) to explore the processes by which animals assemble cognitive structures from fragmentary and often contradictory data. Pinyon jays (Gymnorhinus cyanocephalus) were trained to a high level of accuracy on two implicit transitive lists. They were then given linkage training on the single pair that linked the two lists into a composite, 10-item hierarchy. Following linkage training, the birds were tested on nonadjacent probe pairs drawn both from within (B-D and 2–4) and between (D-1, E-2, B-2, C-3) each original list. Linkage training resulted in a significant transitory disruption in …

Effects Of 5-Hydroxytryptamine 2c Receptor Agonist Mk212 And 2a Receptor Antagonist Mdl100907 On Maternal Behavior In Postpartum Female Rats, Weihai Chen, Qi Zhang, Wenxin Su, Yu Yang, Jing Qiao, Nan Sui, Ming Li

Department of Psychology: Faculty Publications

Maternal behavior in rats is a highly motivated and well-organized social behavior. Given the known roles of serotonin (5-HT) in emotion, motivation, social behavior, and major depression – and its known interaction with dopamine – it is likely that serotonin also plays a crucial role in this behavior. So far, there are surprisingly few studies focusing on 5-HT in maternal behavior, except for maternal aggression. In the present study,we examined the effects of 5-HT_2C receptor agonism and 5-HT_2A receptor antagonism on maternal behavior in postpartum female rats.We hypothesized that activation of 5-HT_2C receptors and blockade of 5-HT …

Supraspinal And Spinal Mechanisms Of Morphine-Induced Hyperalgesia, Caroline A. Arout

Dissertations, Theses, and Capstone Projects

Morphine is the most prominent pharmacological treatment for moderate to severe pain in both acute and chronic paradigms. However, morphine notoriously elicits a paradoxical state of increased pain sensitivity known as hyperalgesia that complicates its use in clinical application. Research over the past three decades has reported that morphine-induced hyperalgesia is dose- and sex-dependent, and likely involves the synchronous activity of several neural networks beyond the opioid system. Whereas systemic, supraspinal, and spinal administration of morphine all cause hyperalgesia that is differentially reversible by N-methyl-D-aspartate receptor (NMDAR) antagonists or melanocortin-1 receptor (MC1R) antagonists, it is unknown as to whether or …

The Neurodevelopment Of Basic Sensory Processing And Integration In Autism Spectrum Disorder, Alice Brown Brandwein

Dissertations, Theses, and Capstone Projects

This thesis presents three studies that together explore the neurophysiological basis for the sensory processing and integration abnormalities that have been observed in autism spectrum disorder (ASD) since the disorder was first described over half a century ago. In designing these studies we seek to fill a hole that currently exists in the research community‟s knowledge of the neurodevelopment of basic multisensory integration -- both in children with autism and as well as in those with typical development. The first study applied event related potentials (ERPs) and behavioral measures of multisensory integration to a large group of healthy participants ranging …

Inter-Religious Relationships And Anxiety In The Regulation Of Automatic Inter-Religious Prejudice, Karla J. Felix

Dissertations, Theses, and Capstone Projects

Shared reality theory predicts and evidence suggests that inter-religious relationships are motivated to maintain or regulate interpersonal interactions with others. However, this motivation has been given little attention within the automatic attitude literature. This research is centered on the idea that automatic prejudice is moderated by two fundamental themes, shared reality and anxiety. These themes are reviewed to determine the degree to which participants socially tune to ingroup versus outgroup religious experimenters. In Experiment 1, automatic inter-religious attitudes toward Christian and Jewish experimenters were assessed via a subliminal prime procedure. Religious orientation (extrinsic, intrinsic) and regulation of inter-religious relationships were …

Quantitative Genetics Of Response To Novelty And Other Stimuli By Infant Rhesus Macaques (Macaca Mulatta) Across Three Behavioral Assessments, G. L. Fawcett, A. M. Dettmer, D. Kay, M. Raveendran, James Dee Higley, N. D. Ryan, J. L. Cameron, J. Rogers

Faculty Publications

Primate behavior is influenced by both heritable factors and environmental experience during development. Previous studies of rhesus macaques (Macaca mulatta) examined the effects of genetic variation on expressed behavior and related neurobiological traits (heritability and/or genetic association) using a variety of study designs. Most of these prior studies examined genetic effects on the behavior of adults or adolescent rhesus macaques, not in young macaques early in development. To assess environmental and additive genetic variation in behavioral reactivity and response to novelty among infants, we investigated a range of behavioral traits in a large number (N = 428) of pedigreed infants …

Acting Wide Awake: Attention And The Ethics Of Emotion, Jacob Davis

Dissertations, Theses, and Capstone Projects

In cases where two human cultures disagree over fundamental ethical values, metaethical questions about what could make one or the other position correct arise with great force. Philosophers committed to naturalistically plausible accounts of ethics have offered little hope of adjudicating such conflicts, leading some to embrace moral relativism. In my dissertation, I develop an empirically grounded response to moral relativism by turning away from debates over which action types are right and wrong and focusing instead on shared features of human emotional motivation. On my account, being motivated by ill-will is ethically bad (if it is), just because human …

Using Otoacoustic Emissions To Evaluate Efferent Auditory Function In Humans, Simon Henin

Dissertations, Theses, and Capstone Projects

The auditory system continually adapts to changes in the acoustic environment over short periods of time. This fine-tuning of its dynamics is mediated in part by the medial olivocochlear (MOC) bundle, a neural feedback loop which aids in the regulation of cochlear micro-mechanics. The ability to measure the response of the MOC system in humans may provide significant insight into unique cochlear functions, such as its sharp frequency selectivity and wide dynamic range. In humans the efferent system can be investigated non-invasively using otoacoustic emissions (OAEs). However, how OAEs can best be used to evaluate efferent function, the pitfalls associated …

On The Role Of Neuronal Oscillations In Auditory Cortical Processing, Monica Noelle O'Connell

Dissertations, Theses, and Capstone Projects

Although it has been over 100 years since William James stated that "everyone knows what attention is", its underlying neural mechanisms are still being debated today. The goal of this research was to describe the physiological mechanisms of auditory attention using direct electrophysiological recordings in macaque primary auditory cortex (A1). A major focus of my research was on the role ongoing neuronal oscillations play in attentional modulation of auditory responses in A1.

For all studies, laminar profiles of synaptic activity, (indexed by current source density analysis) and concomitant firing patterns in local neurons (multiunit activity) were acquired simultaneously via linear …

The Effect Of Malintent On Visual Attention, David Brian Wallace

Dissertations, Theses, and Capstone Projects

Malintent is a relatively unexplored phenomenon, despite the practical and theoretical interest in its detection. The four studies presented here, informed by the Guilty Knowledge Test and Guided Search model of visual attention, illustrate how eye tracking can (and cannot) be utilized to detect malicious intent. Malintent, induced in two different mock crime paradigms (murder; theft), boosted the frequency and duration of fixations that fell upon objects relevant to their task. The size of the malintent effect ranged from moderate (fixation duration) to large (fixation frequency). The increased visual attention given to task-relevant objects was not unique to malintent; benign …

Physiological Correlates Of Emotion Regulation In Depersonalization Disorder, Kai-Mosadi Monde

Dissertations, Theses, and Capstone Projects

Depersonalization disorder (DPD), is an often debilitating DSM V psychiatric disorder characterized by feelings of detachment from the self or others as well as emotional blunting or numbness. Subjective and physiological evidence of decreased emotional arousal may suggest impaired emotion regulation abilities. Deficits in emotional processing of DPD may be the result of dysregulated cortisol and oxytocin levels, however oxytocin levels have never been assessed in DPD. In this series of studies, we aimed to investigate the physiological correlates of emotion regulation in depersonalization disorder. In experiment 1, DPD patients and a normal control group subjectively enhanced and suppressed emotion …

Overcoming Fear: The Effect Of Anxiolytic Medication Administration On Interval Timing Distracters, Chance Christensen

Research on the Hill (Salt Lake City)

Affective disorders such as depression, phobias, schizophrenia, and post-traumatic stress disorder impair the ability to time in the seconds-to-minutes range, i.e., interval timing. According to the Relative Time-Sharing (RTS) model, presentation of task-irrelevant distracters during a timing task results in a delay in responding suggesting a failure to maintain subjective time in working memory, possibly due to attentional and working memory resources being diverted away from timing. Given that some anxiolytic medications have beneficial effects on attention and working memory, e.g., decreasing emotional response to negative events, we hypothesized that they would result in a decreased effect of distracters on …

Conceptualization And Measurement Of Triarchic Abilities For Success In College-Rainbow Project, Michael E. Drebot, Dr. Paul Robinson, Dr. Robert J. Sternberg

Journal of Undergraduate Research

The goal of this ongoing research project is to develop and implement a battery of tests that would supplement the current SAT I and II tests, and improve the prediction of academic performance and success of college-bound students during the crucial freshman year of college. The intent is to develop measures that would add incremental validity to the SAT’s, lending to prediction of academic achievement beyond that obtained by (a) the SAT’s and (b) high school grades. By adding new assessments to the SAT, we hope to address concerns about “at risk” students, those who presumably “under achieve,” and others …

A Kinder, Gentler Dopamine. . . Highlighting Dopamine's Role In Behavioral Flexibility, Jeff A. Beeler, Roshan Cools, Monica Luciana, Sean B. Ostlund, Giselle Petzinger

Publications and Research

No abstract provided.

Tracking Change Patterns For Severely And Persistently Mentally Ill (Spmi) Patients: An Analysis Of The Brief Psychiatric Rating Scale, Expanded (Bprs-E), Elizabeth Richardson, Dr. Gary Burlingame

Journal of Undergraduate Research

This study was conducted to determine differential item sensitivity of The Brief Psychiatric Rating Scale, Expanded (BPRS-E) with an SPMI population. Using item sensitivity information, we tested different factor solutions of the BPRS-E to assess how predictive these are of patient improvement. Although I originally planned to compare BPRS-E scores with scores from the Life Status Questionnaire (LSQ) in this report, I will focus on item sensitivity only. As observed by Vermeersch, Lambert, & Burlingame (2000), while it is important to achieve high levels of reliability when constructing a measure of psychological traits, measures designed to assess patient change need …

Sex Differences In Stress-Induced Social Withdrawal: Role Of Brain Derived Neurotrophic Factor In The Bed Nucleus Of The Stria Terminalis, Gian D. Greenberg, Abigail Laman-Marang, Katharine L. Campi, Heather Voigt, Veronica N. Orr, Leslie Schaal, Brian C. Trainor

Psychology

Depression and anxiety disorders are more common in women than men, and little is known about the neurobiological mechanisms that contribute to this disparity. Recent data suggest that stress-induced changes in neurotrophins have opposing effects on behavior by acting in different brain networks. Social defeat has been an important approach for understanding neurotrophin action, but low female aggression levels in rats and mice have limited the application of these methods primarily to males. We examined the effects of social defeat in monogamous California mice (Peromyscus californicus), a species in which both males and females defend territories. We demonstrate that defeat …

A Pilot Study On The Effects Of Exercise On Depression Symptoms Using Levels Of Neurotransmitters And Eeg As Markers, Timothy H. Barclay, Scott Richards, James Schoffstall, Chad Magnuson, Christine Mcphee, Josh Price, Stephen Aita, Audrey Anderson, Dan Johnson, Jerry Price

Faculty Publications and Presentations

Context: The prescribing of exercise by physicians has become a popular practice, yet the effectiveness of exercise on symptoms of depression is difficult to determine due to a lack of randomized controlled trials with clinical populations. Reports also indicate that only a small percentage of physicians advise their patients regarding exercise and confusion still exists as to how much and what types are best. Aims: To understand the mechanisms that make exercise a viable treatment in depression. Settings and Design: This study employed a six‑week, two group, single‑level trial, pre‑ and posttest design using self‑report of symptoms, blood …

An Introduction To Drugs And The Neuroscience Of Behavior, Adam J. Prus

Books

This up-to-date text provides an introductory overview of the nervous system actions and behavioral effects of the major classes of psychoactive drugs, using pedagogy unique among pharmacology texts to make the topic approachable.