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Full-Text Articles in Psychology

Comparison Between The Effects Of Acute Physical And Psychosocial Stress On Feedback-Based Learning, Xiao Yang, Brittany Nackley, Bruce H. Friedman Jul 2023

Comparison Between The Effects Of Acute Physical And Psychosocial Stress On Feedback-Based Learning, Xiao Yang, Brittany Nackley, Bruce H. Friedman

Psychology Faculty Publications

Stress modulates feedback-based learning, a process that has been implicated in declining mental function in aging and mental disorders. While acute physical and psychosocial stressors have been used interchangeably in studies on feedback-based learning, the two types of stressors involve distinct physiological and psychological processes. Whether the two types of stressors differentially influence feedback processing remains unclear. The present study compared the effects of physical and psychosocial stressors on feedback-based learning. Ninety-six subjects (Mage = 19.11 years; 50 female) completed either a cold pressor task (CPT) or mental arithmetic task (MAT), as the physical or psychosocial stressor, while electrocardiography and …


Boring But Demanding: Using Secondary Tasks To Counter The Driver Vigilance Decrement For Partially Automated Driving, Scott Mishler, Jing Chen Jan 2023

Boring But Demanding: Using Secondary Tasks To Counter The Driver Vigilance Decrement For Partially Automated Driving, Scott Mishler, Jing Chen

Psychology Faculty Publications

Objective

We investigated secondary–task–based countermeasures to the vigilance decrement during a simulated partially automated driving (PAD) task, with the goal of understanding the underlying mechanism of the vigilance decrement and maintaining driver vigilance in PAD.

Background

Partial driving automation requires a human driver to monitor the roadway, but humans are notoriously bad at monitoring tasks over long periods of time, demonstrating the vigilance decrement in such tasks. The overload explanations of the vigilance decrement predict the decrement to be worse with added secondary tasks due to increased task demands and depleted attentional resources, whereas the underload explanations predict the vigilance …


Data Quality And Study Compliance Among College Students Across 2 Recruitment Sources: Two Study Investigation, Abby L. Braitman, Megan Strowger, Jennifer L. Shipley, Jordan Ortman, Rachel I. Macintyre, Elizabeth A. Bauer Jan 2022

Data Quality And Study Compliance Among College Students Across 2 Recruitment Sources: Two Study Investigation, Abby L. Braitman, Megan Strowger, Jennifer L. Shipley, Jordan Ortman, Rachel I. Macintyre, Elizabeth A. Bauer

Psychology Faculty Publications

Background: Models of satisficing suggest that study participants may not fully process survey items and provide accurate responses when survey burden is higher and when participant motivation is lower. Participants who do not fully process survey instructions can reduce a study’s power and hinder generalizability. Common concerns among researchers using self-report measures are data quality and participant compliance. Similarly, attrition can hurt the power and generalizability of a study.

Objective: Given that college students comprise most samples in psychological studies, especially examinations of student issues and psychological health, it is critical to understand how college student recruitment sources impact data …


Individual Differences In Social Play Behaviour Predict Alcohol Intake And Control Over Alcohol Seeking In Rats, Heidi M. B. Lesscher, E. J. Marijke Achterberg, Stephen M. Siviy, Louk J. M. J. Vanderschuren Aug 2021

Individual Differences In Social Play Behaviour Predict Alcohol Intake And Control Over Alcohol Seeking In Rats, Heidi M. B. Lesscher, E. J. Marijke Achterberg, Stephen M. Siviy, Louk J. M. J. Vanderschuren

Psychology Faculty Publications

Rationale

Social play behaviour is a rewarding social activity displayed by young mammals, thought to be important for the development of brain and behaviour. Indeed, disruptions of social play behaviour in rodents have been associated with cognitive deficits and augmented sensitivity to self-administration of substances of abuse, including alcohol, later in life. However, the relation between social development and loss of control over substance use, a key characteristic of substance use disorders including alcohol use disorder (AUD), has not been investigated. Moreover, it remains unknown how inherent differences in playfulness relate to differences in the sensitivity to substance use and …


Synergy Between Behavioural Research On Beluga Whales (Delphinapterus Leucas) Conducted In Zoological And Wild Settings, Heather Manitzas Hill, Deirdre Yeater, Michael Noonan Jul 2021

Synergy Between Behavioural Research On Beluga Whales (Delphinapterus Leucas) Conducted In Zoological And Wild Settings, Heather Manitzas Hill, Deirdre Yeater, Michael Noonan

Psychology Faculty Publications

Behavioural observations of captive beluga whales have complemented and extended much of what has been learnt about this species in the wild. Aquarium-based research has provided finer-scale specificity for many topics, including the seasonal breeding pattern that is characteristic of this species, as well as socio-sexual behaviour that appears to be an important part of the behavioural repertoire of this species. One example is a strong propensity for male–male social interactions that begin to develop at an early age. In addition, detailed behavioural milestones in calves have been documented in ways that extend that which have been collected from wild …


A Daily Diary Study Of Drinking And Nondrinking Days In Nonstudent Alcohol Users, Cathy Lau-Barraco, Ashley N. Linden-Carmichael Jan 2020

A Daily Diary Study Of Drinking And Nondrinking Days In Nonstudent Alcohol Users, Cathy Lau-Barraco, Ashley N. Linden-Carmichael

Psychology Faculty Publications

Background: Emerging adults with lower educational attainment are at higher long-term risk for problematic drinking and alcohol use disorders. Efforts to gain a more in-depth understanding of the drinking habits of nonstudent emerging adults are critical to reduce disparities and to shed light on targets of intervention for this vulnerable group.

Objectives: The current investigation aimed to: (1) provide a description of the daily drinking habits of nonstudent emerging adult drinkers using a 14-day diary method, and (2) examine nondrinking days by assessing their reasons for not drinking as well as strategies used to avoid drinking.

Methods: Participants were 27 …


Laterality Of Eye Use By Bottlenose (Tursiops Truncatus) And Rough-Toothed (Steno Bredanensis) Dolphins While Viewing Predictable And Unpredictable Stimuli, Malin Lilley, Amber J. De Vere, Deirdre Yeater Jan 2020

Laterality Of Eye Use By Bottlenose (Tursiops Truncatus) And Rough-Toothed (Steno Bredanensis) Dolphins While Viewing Predictable And Unpredictable Stimuli, Malin Lilley, Amber J. De Vere, Deirdre Yeater

Psychology Faculty Publications

Laterality of eye use has been increasingly studied in cetaceans. Research supports that many cetacean species keep prey on the right side while feeding and preferentially view unfamiliar objects with the right eye. In contrast, the left eye has been used more by calves while in close proximity to their mothers. Despite some discrepancies across and within species, laterality of eye use generally indicates functional specialization of brain hemispheres in cetaceans. The present study aimed to examine laterality of eye use in bottlenose dolphins (Tursiops truncatus) and rough-toothed dolphins (Steno bredanensis) under managed care. Subjects were video-recorded through an underwater …


Gender And Ethnicity: Are They Associated With Differential Outcomes Of A Biopsychosocial Social-Emotional Learning Program?, Ronnie I. Newman, Odikia Yim, David Shaenfield Jan 2020

Gender And Ethnicity: Are They Associated With Differential Outcomes Of A Biopsychosocial Social-Emotional Learning Program?, Ronnie I. Newman, Odikia Yim, David Shaenfield

Psychology Faculty Publications

Context: Social-emotional learning (SEL) program outcomes may be enhanced when programs take into account gender and ethnicity differences, yet few studies directly examine these variables. The limited literature further suggests improved outcomes accrue by integrating physiological techniques, such as yoga and meditation, directly into SEL curricula to reduce stress.

Aims: This study investigated the association between outcomes of a yogic breath-based biopsychosocial SEL intervention across gender and ethnicity.

Methods: Fifty-nine high school students were evaluated on 4 positive (self-esteem, identity formation, anger coping ability, planning, and concentration) and 3 negative SEL outcomes (impulsivity, distractibility, and endorsement of aggression). Using a …


Naturally Better? A Review Of The Natural‐Is‐Better Bias, Brian P. Meier, Amanda J. Dillard, Courtney M. Lappas Jul 2019

Naturally Better? A Review Of The Natural‐Is‐Better Bias, Brian P. Meier, Amanda J. Dillard, Courtney M. Lappas

Psychology Faculty Publications

People are frequently exposed to products and services that are labeled natural (e.g., Nature Made Vitamins or GoJo Natural Orange Hand Cleaner). The frequency with which this label is used suggests that it delivers an advantage in marketing and sales. Our review examines the preference for and perception of naturalness and reveals that people have a bias for items described as natural in many domains including foods, medicine, beauty products, cigarettes, and lighting. These preferences abound even when the natural item is identical or not objectively better than the non‐natural or synthetic item. We believe this bias may be driven …


A Behavioral Confirmation And Reduction Of The Natural Versus Synthetic Drug Bias, Brian P. Meier, Amanda J. Dillard, Eric S. Osorio, Courtney M. Lappas Jan 2019

A Behavioral Confirmation And Reduction Of The Natural Versus Synthetic Drug Bias, Brian P. Meier, Amanda J. Dillard, Eric S. Osorio, Courtney M. Lappas

Psychology Faculty Publications

Research reveals a biased preference for natural versus synthetic drugs; however, this research is based upon self-report and has not examined ways to reduce the bias. We examined these issues in five studies involving 1,125 participants. In a Pilot Study (N = 110), participants rated the term natural to be more positive than the term synthetic, which reveals a default natural-is-better belief. In Studies 1 (N = 109) and 2 (N = 100), after a supposed personality study, participants were offered a thank you “gift” of a natural or synthetic pain reliever. Approximately 86% (Study 1) and 93% (Study 2) …


Affective Influences Without Approach-Avoidance Actions: On The Congruence Between Valence And Stimulus-Response Mappings, Motonori Yamaguchi, Jing Chen Nov 2018

Affective Influences Without Approach-Avoidance Actions: On The Congruence Between Valence And Stimulus-Response Mappings, Motonori Yamaguchi, Jing Chen

Psychology Faculty Publications

The valence of stimuli can influence performance in the spatial stimulus–response compatibility task, but this observation could arise from the process of selecting responses or selecting stimulus–response mappings. The response-selection account proposes that spatial compatible and incompatible keypress responses serve as approaching and avoiding actions to a valenced target. The mapping-selection account suggests that there is congruence between stimulus valence and stimulus–response mappings; positive-compatible/negative-incompatible is more congruent than negative-compatible/positive-incompatible. Whereas affective valence was part of the target stimuli to which participants responded in previous studies, the present study isolated affective valence from the target by presenting an additional mapping cue …


Common Sense And Common Nonsense: A Conversation About Mental Attitudes, Science, And Society, Daniel S. Levine Oct 2018

Common Sense And Common Nonsense: A Conversation About Mental Attitudes, Science, And Society, Daniel S. Levine

Psychology Faculty Publications

Daniel S. Levine's Common Sense and Common Nonsense observes human decision making, ethics, and social organization as illuminated by the scientific disciplines of neural network theory, neuroscience, experimental psychology, and dynamical systems theory. It is a book whose aim is advocacy as well as research. Its goal is to use an understanding of our brains and minds to better operationalize Aldous Huxley's admonition to "try to be a little kinder." It wanders over examples from sociology, politics, economics, religion, literature, and many other fields but looks at all as examples of a few common themes. The "common nonsense" of the …


Nmda Receptor Blockade Specifically Impedes The Acquisition Of Incentive Salience Attribution, Jonathan J. Chow, Joshua S. Beckmann Feb 2018

Nmda Receptor Blockade Specifically Impedes The Acquisition Of Incentive Salience Attribution, Jonathan J. Chow, Joshua S. Beckmann

Psychology Faculty Publications

Glutamatergic signaling plays an important role in learning and memory. Using Pavlovian conditioned approach procedures, the mechanisms that drive stimulus-reward learning and memory have been investigated. However, there are instances where reward-predictive stimuli can function beyond being solely predictive and can be attributed with “motivational value” or incentive salience. Using a Pavlovian conditioned approach procedure consisting of two different but equally predictive stimuli (lever vs. tone) we investigated the role NMDA receptor function has in the attribution of incentive salience. The results revealed that the administration of MK-801, an NMDA receptor antagonist, during acquisition of Pavlovian conditioned approach promoted goal-tracking …


Visual Scanning Of Males And Females In Infancy, Hannah B. White, Alyson J. Hock, Rachel L. Jubran, Alison Heck, Ramesh S. Bhatt Feb 2018

Visual Scanning Of Males And Females In Infancy, Hannah B. White, Alyson J. Hock, Rachel L. Jubran, Alison Heck, Ramesh S. Bhatt

Psychology Faculty Publications

This study addressed the development of attention to information that is socially relevant to adults by examining infants' (n = 64) scanning patterns of male and female bodies. Infants exhibited systematic attention to regions associated with sex-related scanning by adults, with 3.5-and 6.5-month-olds looking longer at the torso of females than males and longer at the legs of males than females. However, this pattern of looking was not found when infants were tested on headless bodies in Experiment 2, which suggests that infants' differential gaze pattern in Experiment 1 was not due to low-level stimulus features, such as clothing, and …


Transient Signals And Inattentional Blindness In A Multi-Object Tracking Task, Dakota B. Palmer, Yusuke Yamani, Taylor L. Bobrow, Nicole D. Karpinsky, Dean J. Krusienski Jan 2018

Transient Signals And Inattentional Blindness In A Multi-Object Tracking Task, Dakota B. Palmer, Yusuke Yamani, Taylor L. Bobrow, Nicole D. Karpinsky, Dean J. Krusienski

Psychology Faculty Publications

Inattentional blindness is a failure to notice an unexpected event when attention is directed elsewhere. The current study examined participants' awareness of an unexpected object that maintained luminance contrast, switched the luminance once, or repetitively flashed. One hundred twenty participants performed a dynamic tracking task on a computer monitor for which they were instructed to count the number of movement deflections of an attended set of objects while ignoring other objects. On the critical trial, an unexpected cross that did not change its luminance (control condition), switched its luminance once (switch condition), or repetitively flashed (flash condition) traveled across the …


Gambling-Like Behavior In Pigeons: 'Jackpot' Signals Promote Maladaptive Risky Choice, Aaron P. Smith, Joshua S. Beckmann, Thomas R. Zentall Jul 2017

Gambling-Like Behavior In Pigeons: 'Jackpot' Signals Promote Maladaptive Risky Choice, Aaron P. Smith, Joshua S. Beckmann, Thomas R. Zentall

Psychology Faculty Publications

Individuals often face choices that have uncertain outcomes and have important consequences. As a model of this environment, laboratory experiments often offer a choice between an uncertain, large reward that varies in its probability of delivery against a certain but smaller reward as a measure of an individual’s risk aversion. An important factor generally lacking from these procedures are gambling related cues that may moderate risk preferences. The present experiment offered pigeons choices between unreliable and certain rewards but, for the Signaled group on winning choices, presented a ‘jackpot’ signal prior to reward delivery. The Unsignaled group received an ambiguous …


Further Evidence Of Early Development Of Attention To Dynamic Facial Emotions: Reply To Grossmann And Jessen, Alison Heck, Alyson J. Hock, Hannah B. White, Rachel L. Jubran, Ramesh S. Bhatt Jan 2017

Further Evidence Of Early Development Of Attention To Dynamic Facial Emotions: Reply To Grossmann And Jessen, Alison Heck, Alyson J. Hock, Hannah B. White, Rachel L. Jubran, Ramesh S. Bhatt

Psychology Faculty Publications

Adults exhibit enhanced attention to negative emotions like fear, which is thought to be an adaptive reaction to emotional information. Previous research, mostly conducted with static faces, suggests that infants exhibit an attentional bias toward fearful faces only at around 7 months of age. In a recent study (Journal of Experimental Child Psychology, 2016, Vol. 147, pp. 100–110), we found that 5-month-olds also exhibit heightened attention to fear when tested with dynamic face videos. This indication of an earlier development of an attention bias to fear raises questions about developmental mechanisms that have been proposed to underlie this …


Impulsivity, Rejection Sensitivity, And Reactions To Stressors In Borderline Personality Disorder, Kathy R. Berenson, Wesley Ellen Gregory, Erin Glaser, Aliza Romirowsky, Eshkol Rafaeli, Xiao Yang, Geraldine Downey Aug 2016

Impulsivity, Rejection Sensitivity, And Reactions To Stressors In Borderline Personality Disorder, Kathy R. Berenson, Wesley Ellen Gregory, Erin Glaser, Aliza Romirowsky, Eshkol Rafaeli, Xiao Yang, Geraldine Downey

Psychology Faculty Publications

This research investigated baseline impulsivity, rejection sensitivity, and reactions to stressors in individuals with borderline personality disorder compared to healthy individuals and those with avoidant personality disorder . The borderline group showed greater impulsivity than the avoidant and healthy groups both in a delay-discounting task with real monetary rewards and in self-reported reactions to stressors; moreover, these findings could not be explained by co-occurring substance use disorders. Distress reactions to stressors were equally elevated in both personality disorder groups (relative to the healthy group). The borderline and avoidant groups also reported more maladaptive reactions to a stressor of an interpersonal …


Eyes Wide Open: Pupil Size As A Proxy For Inhibition In The Masked-Priming Paradigm, Jason Geller, Mary L. Still, Alison L. Morris May 2016

Eyes Wide Open: Pupil Size As A Proxy For Inhibition In The Masked-Priming Paradigm, Jason Geller, Mary L. Still, Alison L. Morris

Psychology Faculty Publications

A core assumption underlying competitive-network models of word recognition is that in order for a word to be recognized, the representations of competing orthographically similar words must be inhibited. This inhibitory mechanism is revealed in the masked-priming lexical-decision task (LDT) when responses to orthographically similar word prime-target pairs are slower than orthographically different word prime-target pairs (i.e., inhibitory priming). In English, however, behavioral evidence for inhibitory priming has been mixed. In the present study, we utilized a physiological correlate of cognitive effort never before used in the masked-priming LDT, pupil size, to replicate and extend behavioral demonstrations of inhibitory …


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.


Self-Efficacy Matters More Than Interruptions In A Sequential Multitasking Experiment, Maureen A. Conard, Robert F. Marsh Jan 2016

Self-Efficacy Matters More Than Interruptions In A Sequential Multitasking Experiment, Maureen A. Conard, Robert F. Marsh

Psychology Faculty Publications

Interruptions and multitasking have received a great deal of attention from researchers. The present study is the first to examine task self-efficacy along with interruptions in an experimental multitasking framework. Perceptions of resumption lag times and task rehearsal were also examined. Participants (N= 110) completed a primary task (puzzle) with some being interrupted to pursue a secondary task (a word search) either once or four times. Uninterrupted participants completed the puzzle 26% faster than those interrupted once and 30% faster than those interrupted four times. However, self-efficacy predicted performance much more strongly than did interruptions, and therefore should receive more …


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 …


Compliance: Film About A Real-Life Milgram Experiment, Christina J. Taylor, Ryan Bushman, Lori Gwilliam, Michael Novis, Johanna Tiarks Oct 2015

Compliance: Film About A Real-Life Milgram Experiment, Christina J. Taylor, Ryan Bushman, Lori Gwilliam, Michael Novis, Johanna Tiarks

Psychology Faculty Publications

The film, Compliance, tells the story of a real-life Milgram experiment in which strip-search scams were perpetrated in USA fast-food restaurants. A pilot study was carried out to explore the appropriateness of the film for classroom instruction about the psychology of obedience to authority. Participants with more knowledge about Milgram's research were significantly more likely to endorse use of the film than the less knowledgeable participants. Results suggest that substantive instruction on obedience to authority is a prerequisite to using Compliance in the classroom.


Bisphenol-A Exposure During Adolescence Leads To Enduring Alterations In Cognition And Dendritic Spine Density In Adult Male And Female Rats, Rachel E. Bowman, Victoria N. Luine, Samantha Diaz Weinstein, Hameda Khandaker, Sarah Dewolf, Maya Frankfurt Mar 2015

Bisphenol-A Exposure During Adolescence Leads To Enduring Alterations In Cognition And Dendritic Spine Density In Adult Male And Female Rats, Rachel E. Bowman, Victoria N. Luine, Samantha Diaz Weinstein, Hameda Khandaker, Sarah Dewolf, Maya Frankfurt

Psychology Faculty Publications

We have previously demonstrated that adolescent exposure of rats to bisphenol-A (BPA), an environmental endocrine disrupter, increases anxiety, impairs spatial memory, and decreases dendritic spine density in the CA1 region of the hippocampus (CA1) and medial prefrontal cortex (mPFC) when measured in adolescence in both sexes. The present study examined whether the behavioral and morphological alterations following BPA exposure during adolescent development are maintained into adulthood. Male and female, adolescent rats received BPA, 40 μg/kg/bodyweight, or control treatments for one week. In adulthood, subjects were tested for anxiety and locomotor activity, spatial memory, non-spatial visual memory, and sucrose preference. Additionally, …


Mechanisms For The Association Between Traditional Masculine Ideologies And Rape Myth Acceptance Among College Men, Catherine J. Lutz-Zois, Karisa Ann Moler, Mitchell Brown Jan 2015

Mechanisms For The Association Between Traditional Masculine Ideologies And Rape Myth Acceptance Among College Men, Catherine J. Lutz-Zois, Karisa Ann Moler, Mitchell Brown

Psychology Faculty Publications

We explored mechanisms for the relationship between traditional masculine ideologies and rape myth acceptance. We hypothesized that locus of control would serve as a mediator for victim precipitation rape myths, while negative attitudes toward women would serve as a mediator for victim masochism and victim fabrication rape myths. Using a sample of 100 male college students, the results indicated that negative attitudes toward women mediated the relationship between traditional masculine ideologies and all three types of rape myths, but locus of control did not serve as a mediator for any. Implications and directions for future research are discussed.


The Gaze-Cueing Effect In The United States And Japan: Influence Of Cultural Differences In Cognitive Strategies On Control Of Attention, Saki Takao, Yusuke Yamani, Atsunori Ariga Jan 2015

The Gaze-Cueing Effect In The United States And Japan: Influence Of Cultural Differences In Cognitive Strategies On Control Of Attention, Saki Takao, Yusuke Yamani, Atsunori Ariga

Psychology Faculty Publications

The direction of seen gaze automatically and exogenously guides visual spatial attention, a phenomenon termed as the gaze-cueing effect. Although this effect arises when the duration of stimulus-onset asynchrony (SOA) between a non-predictive gaze cue and the target is relatively long, no empirical research examined the factors underlying this extended cueing effect. Two experiments compared the gaze-cueing effect at longer SOAs (700 ms) in Japanese and American participants. Cross-cultural studies on cognition suggest that Westerners tend to use a context-independent analytical strategy to process visual environments, whereas Asians use a context-dependent holistic approach. We hypothesized that Japanese participants would …


Adolescent Bisphenol-A Exposure Decreases Dendritic Spine Density: Role Of Sex And Age, Rachel E. Bowman, Victoria N. Luine, Hameda Khandaker, Joseph J. Villafane, Maya Frankfurt Nov 2014

Adolescent Bisphenol-A Exposure Decreases Dendritic Spine Density: Role Of Sex And Age, Rachel E. Bowman, Victoria N. Luine, Hameda Khandaker, Joseph J. Villafane, Maya Frankfurt

Psychology Faculty Publications

Bisphenol-A (BPA), a common environmental endocrine disruptor, modulates estrogenic, androgenic, and anti-androgenic effects throughout the lifespan. We recently showed that low dose BPA exposure during adolescence increases anxiety and impairs spatial memory independent of sex. In the current study, six week old Sprague Dawley rats (n=24 males, n=24 females) received daily subcutaneous injections (40 µg/kg bodyweight) of BPA or vehicle for one week. Serum corticosterone levels in response to a 1 h restraint stress and spine density were examined at age 7 (cohort 1) and 11 (cohort 2) weeks. Adolescent BPA exposure did not alter stress dependent corticosterone responses but …


Interest Level Improves Learning But Does Not Moderate The Effects Of Interruptions: An Experiment Using Simultaneous Multitasking, Maureen A. Conard, Robert F. Marsh Feb 2014

Interest Level Improves Learning But Does Not Moderate The Effects Of Interruptions: An Experiment Using Simultaneous Multitasking, Maureen A. Conard, Robert F. Marsh

Psychology Faculty Publications

It has become common practice for people to multitask with electronic devices in everyday situations. We examined the effects of interrupting participants with instant messages while they watched a video presentation in a situation that resembled commonplace events such as a business meeting, a training presentation, or a classroom lecture. We compared them to participants who were not interrupted. We also investigated how interest in the topics presented affected learning. Results showed that interruptions reduced learning, by a small but statistically significant margin, which is consistent with the findings of similar studies. Importantly, interest level was as strong a predictor …


Mouse-Tracking Reveals When The Stroop Effect Happens., Sara Incera, Theresa A. Markis, Conor T. Mclennan Aug 2013

Mouse-Tracking Reveals When The Stroop Effect Happens., Sara Incera, Theresa A. Markis, Conor T. Mclennan

Psychology Faculty Publications

We examined the continuous dynamics of the Stroop task using mouse-tracking. Participants moved the computer mouse to indicate the color of words presented on the computer screen in both congruent (blue in blue font) and incongruent (blue in yellow font) conditions. Mouse-tracking data revealed significant differences in reaction times, spatial attraction, and velocity. In the Stroop effect, word reading and color processing influenced performance, but they did so differently: Word reading influenced the early part of the mouse trajectory, but color processing influenced later parts. The data provide important new information about the real time processing dynamics underlying the effect.


The Effects Of External Motivation And Real-Time Automated Feedback On Speeding Behavior In A Naturalistic Setting, Ian J. Reagan, James P. Bliss, Ron Van Houten, Bryan W. Hilton Jan 2013

The Effects Of External Motivation And Real-Time Automated Feedback On Speeding Behavior In A Naturalistic Setting, Ian J. Reagan, James P. Bliss, Ron Van Houten, Bryan W. Hilton

Psychology Faculty Publications

Objective: In this field experiment, the authors tested an alerting system and a monetary incentive system with the objective of reducing speeding more than 5 mph faster than the posted speed limit.

Background: Speeding is a factor in a significant number of traffic fatalities. The systems tested in this project have been evaluated outside but not within the United States. These studies indicated that similar systems led to reductions in speeding.

Method: For this study, eight vehicles were instrumented such that vehicle speed and speed limits were linked in real time. A total of 50 participants drove assigned vehicles for …