Search results for: Elizabeth A. Olson

Items from 1 to 13 out of 13 results

article

Social Anhedonia is Associated with Low Social Network Diversity in Trauma‐Exposed Adults

Elizabeth A. Olson, Diego A. Pizzagalli, Isabelle M. Rosso

Journal of Traumatic Stress > 34 > 1 > 241 - 247

Social anhedonia has been proposed to contribute to social isolation in several psychiatric disorders, but it has not been examined in relation to deficits in social connection that also characterize posttraumatic stress disorder (PTSD). A growing body of evidence emphasizes the health importance of structural features of social networks, including their size and complexity. The current study examined...

chapter

Fuzzy control of an autonomous car using a smart phone

Elizabeth A. Olson, Nathalie Risso, Adam M. Johnson, Jonathan Sprinkle

2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) > 1 - 6

2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)

This paper presents preliminary results on the development of a vision-based controller with a smart phone in the loop for autonomous vehicles. Our approach involves the use of the low cost vision sensors available on a smart phone to implement speed control for a lead-follower application, under stop-and-go traffic conditions. The controller uses fuzzy logic to determine commands based on estimated...

article

Disruption of white matter structural integrity and connectivity in posttraumatic stress disorder: A TBSS and tractography study

Elizabeth A. Olson, Jiaolong Cui, Rena Fukunaga, Lisa D. Nickerson, more

Depression and Anxiety > 34 > 5 > 437 - 445

Background Most studies of brain white matter (WM) in posttraumatic stress disorder (PTSD) have focused on combat trauma, and often were confounded by neurological and substance dependence comorbidity. This study used tract‐based spatial statistics (TBSS) and probabilistic tractography to characterize WM microstructure in a mixed‐sex community sample of PTSD patients exposed to diverse and multiple...

article

Internet‐based cognitive behavior therapy for major depressive disorder: A randomized controlled trial

Isabelle M. Rosso, William D.S. Killgore, Elizabeth A. Olson, Christian A. Webb, more

Depression and Anxiety > 34 > 3 > 236 - 245

Background Prior research has shown that the Sadness Program, a technician‐assisted Internet‐based cognitive behavioral therapy (iCBT) intervention developed in Australia, is effective for treating major depressive disorder (MDD). The current study aimed to expand this work by adapting the protocol for an American population and testing the Sadness Program with an attention control group. Methods...

article

Sex Differences in Psychological Factors Associated with Social Discounting

Elizabeth A. Olson, Isabelle M. Rosso, Lauren A. Demers, Shreya Divatia, more

Journal of Behavioral Decision Making > 29 > 1 > 60 - 66

The social discounting paradigm is a powerful means of quantifying altruism in humans, who are typically willing to forgo some amount of personal earnings in exchange for increased earnings for another person. The amount of money that people are willing to forgo decreases with increasing social distance. In this study, we examined variables related to sex, intolerance of uncertainty, and empathy,...

article

Microstructure of frontoparietal connections predicts individual resistance to sleep deprivation

Jiaolong Cui, Olga Tkachenko, Hannah Gogel, Maia Kipman, more

NeuroImage > 2015 > 106 > Complete > 123-133

Sleep deprivation (SD) can degrade cognitive functioning, but growing evidence suggests that there are large individual differences in the vulnerability to this effect. Some evidence suggests that baseline differences in the responsiveness of a fronto-parietal attention system that is activated during working memory (WM) tasks may be associated with the ability to sustain vigilance during sleep deprivation...

article

Sleep difficulties are associated with increased symptoms of psychopathology

Olga Tkachenko, Elizabeth A. Olson, Mareen Weber, Lily A. Preer, more

Experimental Brain Research > 2014 > 232 > 5 > 1567-1574

Sleep problems often co-occur with psychopathological conditions and affective dysregulation. Individuals with mood disorders have significantly higher rates of sleep disturbances than healthy individuals, and among those with mood disorders, sleep problems are associated with lower rates of remission and response to treatment. Sleep disruption may itself be a risk factor for various forms of psychopathology,...

article

Associations between cortical thickness and general intelligence in children, adolescents and young adults

Kyle Menary, Paul F. Collins, James N. Porter, Ryan Muetzel, more

Intelligence > 2013 > 41 > 5 > 597-606

Neuroimaging research indicates that human intellectual ability is related to brain structure including the thickness of the cerebral cortex. Most studies indicate that general intelligence is positively associated with cortical thickness in areas of association cortex distributed throughout both brain hemispheres. In this study, we performed a cortical thickness mapping analysis on data from 182...

article

“You don't expect me to believe that, do you?” Expectations influence recall and belief of alibi information

Elizabeth A. Olson

Journal of Applied Social Psychology > 43 > 6 > 1238 - 1247

Presumptions of guilt could bias criminal investigators' interviews of suspects, reducing recall of exculpatory alibi information, and the label “alibi” could be enough to create a presumption of guilt. Participants (n = 285) viewed a videotaped narrative account; some participants knew prior to viewing that the account was an alibi whereas others discovered this after viewing. Also, some participants...

article

The alibi‐generation effect: Alibi‐generation experience influences alibi evaluation

Elizabeth A. Olson, Gary L. Wells

Legal and Criminological Psychology > 17 > 1 > 151 - 164

Purpose. Post‐conviction DNA exonerations demonstrate a failure of alibis to protect innocent suspects. We contend one reason alibis are not believed is because evaluators underestimate how difficult it is for an innocent person to generate a convincing alibi. We hypothesized that asking evaluators to first generate an alibi of their own would lead evaluators to consider a suspect's alibi as more...

article

Age-independent effects of pubertal status on behavioral constraint in healthy adolescents

Ann M. Schissel, Elizabeth A. Olson, Paul F. Collins, Monica Luciana

Personality and Individual Differences > 2011 > 51 > 8 > 975-980

Studies have examined age-related changes in personality traits from adolescence through young adulthood, finding that aspects of negative emotionality decrease while conscientiousness increases over time. Varied mechanisms may underlie these transitions, including puberty-driven hormonal changes. Here, healthy adolescents completed the Multidimensional Personality Questionnaire-Brief Form and self-report...

article

Adolescents’ performance on delay and probability discounting tasks: Contributions of age, intelligence, executive functioning, and self-reported externalizing behavior

Elizabeth A. Olson, Catalina J. Hooper, Paul Collins, Monica Luciana

Personality and Individual Differences > 2007 > 43 > 7 > 1886-1897

Healthy adolescents, ages 9–23, completed delay and probability discounting tasks and measures of verbal and non-verbal intelligence, executive functioning, and self-reported internalizing and externalizing behavior. Delay but not probability discounting decreased with age. Delay discounting was also associated with verbal intelligence and Go–NoGo and Iowa Gambling Task performance. Probability discounting...

article

What Makes a Good Alibi? A Proposed Taxonomy

Elizabeth A. Olson, Gary L. Wells

Law and Human Behavior > 2004 > 28 > 2 > 157-176

A taxonomy of alibis is proposed involving two forms of supporting proof: physical evidence and person evidence. Levels of physical evidence and person evidence were combined to create 12 cells in the taxonomy. Participants (n = 252), who were asked to assume the role of detectives, evaluated alibis representing these 12 cells. The believability of the alibis generally followed the taxonomy's predicted...

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