Greg Hajcak
Florida State University
Publications 257
#1Diana J. Whalen (WashU: Washington University in St. Louis)H-Index: 14
#2Kirsten Gilbert (WashU: Washington University in St. Louis)H-Index: 7
Last.Deanna M (WashU: Washington University in St. Louis)H-Index: 75
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Reductions in positive affect are a salient feature of preschool-onset major depressive disorder. Yet, little is known about the psychophysiological correlates of this blunted positive affect and whether reduced physiological responding to pleasant stimuli may differentiate depressed and healthy young children. 120 four-to-seven year old children with current depression and 63 psychiatrically healthy 4-to-7 year old children completed a simple picture-viewing task of pleasant and neutral picture...
#1Cara M. Keifer (SBU: Stony Brook University)H-Index: 3
#2Kathryn M. Hauschild (SBU: Stony Brook University)H-Index: 1
Last.Matthew D. Lerner (SBU: Stony Brook University)H-Index: 18
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Despite evidence suggesting differences in early event-related potential (ERP) responses to social emotional stimuli, little is known about later stage ERP contributions to social emotional processing in individuals with autism spectrum disorder (ASD). Adults with and without ASD completed a facial emotion recognition task involving stimuli that varied by emotional intensity while electroencephalograms were recorded. Principal components analysis was used to examine P300 and late positive potent...
#1Keanan J. Joyner (FSU: Florida State University)H-Index: 3
#2Colin B. Bowyer (FSU: Florida State University)
Last.Christopher J. Patrick (FSU: Florida State University)H-Index: 67
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Reward-deficit models of addiction posit weaknesses in reward sensitivity to be promotive of substance dependence, whereas the externalizing spectrum model views substance problems as arising in large part from a general disinhibitory liability. In the current study we sought to integrate these perspectives by testing for separate and interactive associations of disinhibition and reward dysfunction with interview-assessed substance use disorders (SUDs). Community and college adults (N = 199) com...
#1E. David Klonsky (UBC: University of British Columbia)H-Index: 34
#2Sarah E. Victor (University of Pittsburgh)H-Index: 7
Last.Greg Hajcak (FSU: Florida State University)H-Index: 64
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Emotion research would benefit from a self-report measure that assesses both discrete emotions and broad dimensions, takes into account the time-course of emotional experience, and distinguishes emotional reactivity and regulation. The present study describes the development and psychometric properties of the Multidimensional Emotion Questionnaire (MEQ), which was designed to address these needs. The MEQ assesses: (a) two superordinate dimensions of emotional reactivity (positive and negative), ...
#1Kreshnik Burani (FSU: Florida State University)
#2Julia Klawohn (FSU: Florida State University)H-Index: 7
Last.Greg Hajcak (FSU: Florida State University)H-Index: 64
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#1Amanda Levinson (SBU: Stony Brook University)H-Index: 5
#2Brittany C. Speed (SBU: Stony Brook University)H-Index: 4
Last.Greg Hajcak (FSU: Florida State University)H-Index: 64
view all 3 authors...
Adolescent girls are at increased risk for depression, which is thought to result from the interaction of biological vulnerabilities and life stressors common to adolescent girls. A blunted late positive potential (LPP) to emotional stimuli (i.e., pleasant and unpleasant) has been associated with depressive symptoms and risk. The current study of adolescent girls examines the moderating effects of the LPP, a candidate biomarker of depression, of the link between life stress and increases in depr...