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Full-Text Articles in Psychology
Nonsuicidal Self-Injury, Suicide Planning, And Suicide Attempt Among High-Risk Adolescents Prior To Psychiatric Hospitalization, Christina M. Sellers, Antonia Díaz-Valdés, Andrew C. Porter, Catherine R. Glenn, Adam Bryant Miller, Adeline Wyman Battalen, Kimberly H. Mcmanama O'Brien
Nonsuicidal Self-Injury, Suicide Planning, And Suicide Attempt Among High-Risk Adolescents Prior To Psychiatric Hospitalization, Christina M. Sellers, Antonia Díaz-Valdés, Andrew C. Porter, Catherine R. Glenn, Adam Bryant Miller, Adeline Wyman Battalen, Kimberly H. Mcmanama O'Brien
Psychology Faculty Publications
The purpose of this study was to understand the trajectories of nonsuicidal self-injury (NSSI) and suicide plans (SP) in the 90 days prior to inpatient hospitalization, understand the role of NSSI and SP in predicting suicide attempts (SA) on a given day, and to test the interaction between NSSI and SP in predicting same-day SA. Participants included 69 adolescents (77% female, 65% white, 77% Non-Hispanic/Latinx, Mage = 15.77 SDage = 1.00) from an inpatient psychiatric unit. Past 90 day NSSI, SP, and SA were measured using the Columbia Suicide Severity Rating Scale and Timeline Follow Back. First, mixed effect models …
Physical Aggressiveness And Gray Matter Deficits In Ventromedial Prefrontal Cortex, David S. Chester, Donald R. Lynam, Richard Milich, C. Nathan Dewall
Physical Aggressiveness And Gray Matter Deficits In Ventromedial Prefrontal Cortex, David S. Chester, Donald R. Lynam, Richard Milich, C. Nathan Dewall
Psychology Faculty Publications
What causes individuals to hurt others? Since the famous case of Phineas Gage, lesions of the ventromedial prefrontal cortex (VMPFC) have been reliably linked to physically aggressive behavior. However, it is unclear whether naturally-occurring deficits in VMPFC, among normal individuals, might have widespread consequences for aggression. Using voxel based morphometry, we regressed gray matter density from the brains of 138 normal female and male adults onto their dispositional levels of physical aggression, verbal aggression, and sex, simultaneously. Physical, but not verbal, aggression was associated with reduced gray matter volume in the VMPFC and to a lesser extent, frontopolar cortex. Participants …
Social Rejection Magnifies Impulsive Behavior Among Individuals With Greater Negative Urgency: An Experimental Test Of Urgency Theory, David S. Chester, Donald R. Lynam, Richard S. Milich, C. Nathan Dewall
Social Rejection Magnifies Impulsive Behavior Among Individuals With Greater Negative Urgency: An Experimental Test Of Urgency Theory, David S. Chester, Donald R. Lynam, Richard S. Milich, C. Nathan Dewall
Psychology Faculty Publications
Impulsivity is a multifaceted trait with substantial implications for human well-being. One facet of impulsivity is negative urgency, the tendency to act impulsively in response to negative affect. Correlational evidence suggests that negative affect magnifies impulsive behavior among individuals with greater negative urgency, yet causal evidence for this core pillar of urgency theory is lacking. To fill this gap in the literature, participants (N = 363) were randomly assigned to experience social rejection (a situation shown to induce negative affect) or acceptance. Participants then reported their subjective negative affect, completed a behavioral measure of impulsivity, and reported their negative …
Alcohol Use And Strenuous Physical Activity In College Students: A Longitudinal Test Of 2 Explanatory Models Of Health Behavior, Heather A. Davis, Elizabeth N. Riley, Gregory T. Smith, Richard S. Milich, Jessica L. Burris
Alcohol Use And Strenuous Physical Activity In College Students: A Longitudinal Test Of 2 Explanatory Models Of Health Behavior, Heather A. Davis, Elizabeth N. Riley, Gregory T. Smith, Richard S. Milich, Jessica L. Burris
Psychology Faculty Publications
Objective: To help clarify the effect of gender on the bidirectional relationship between alcohol use and strenuous physical activity in college students. Participants: Five hundred twenty-four (52% female) college students recruited in August 2008 and 2009 and followed up in April 2009 and April 2011, respectively. Methods: Participants reported their alcohol use and strenuous physical activity on 2 occasions (baseline and follow-up) spaced approximately 1 or 2 years apart. Results: For females, alcohol use quantity at baseline was associated with increased strenuous physical activity at 1- and 2-year follow-ups, and alcohol use frequency at baseline was …