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Full-Text Articles in Psychology
The (B)Link Between Amotivation And Dopamine In Psychosis: What Phasic Eye Blink Rate Reveals, Jessica Elaina Mcgovern
The (B)Link Between Amotivation And Dopamine In Psychosis: What Phasic Eye Blink Rate Reveals, Jessica Elaina Mcgovern
LSU Doctoral Dissertations
Motivation deficits (i.e., avolition or amotivation) are a cardinal feature of schizophrenia spectrum disorders (SSDs) and are linked to worse functional outcomes. Accumulating evidence implicates underactive dopamine responses in reward areas of the brain (e.g., striatum) in the etiology of amotivation. Phasic dopamine firing in the striatum purportedly has a role in increasing the perceived value of a potential reward that, in effect, helps “push” the organism toward initiating and persisting in the action to pursue rewards. Previous research has suggested that eye blink rate (EBR) may be a reliable and valid index of striatal dopamine. Amotivation (clinician-rated and self-reported) …
Motivational Processes And Performance: The Role Of Global And Facet Personality Traits, James Haven Martin
Motivational Processes And Performance: The Role Of Global And Facet Personality Traits, James Haven Martin
LSU Doctoral Dissertations
The conscientiousness and neuroticism dimensions of the Five Factor Model (FFM) have been shown to be predictive of performance (Barrick & Mount, 1991; Paunonen & Ashton, 2001). This research examined three relatively unexplored issues, including (a) the impact of conscientiousness and neuroticism on motivational processes and performance; (b) the criterion-related validity of facet measures of conscientiousness and neuroticism as predictors of motivation and performance; and (c) whether conscientiousness, neuroticism, and their facets impact changes in motivational processes between performance episodes. Undergraduate psychology students (N = 220) completed measures of self-set goals and self-efficacy beliefs on two occasions, prior to the …