Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 315 for “"Impulsivity"”.
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Impulsivity: Psychometrics of impulsivity in adolescents and links to adolescent risk behaviors
… of this dissertation was to extend the theory of impulsivity and adolescent risk behaviors. Impulsivity is commonly measured with the Barratt Impulsivity Scale (Fossati, Barratt, Acquarini, & Di Ceglie, 2002; Patton, Stanford, & Barratt, 1995). However, the psychometrics and performance of the …
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Dimension Reduction on Measures of Impulsivity
… convergent validity on six different measures of impulsivity, and the second being a comparison of dimension reduction techniques for quantitative data. Results from a Principal Components Analysis (PCA) were compared with results from a novel dimension technique known as Local Linear Embedding …
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Some Physiological Correlates of Reflection-Impulsivity
Made available in DSpace on 2014-12-13T18:22:02Z (GMT). No. of bitstreams: 1 7821243.pdf: 3780040 bytes, checksum: 268353d25378c2170a7d6e94c5450f2e (MD5) Previous issue date: 1978
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Impulsivity traits as determinants for smoking behavior
… is in direct relation to the character trait of impulsivity is widely agreed upon. This study examines the individual character traits of the UPPS-P impulsivity scale that comprise the construct of impulsivity as they relate to cigarette smoking. This study seeks to illustrate whether or not …
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Apathy and Impulsivity in Frontotemporal Lobar Degeneration
Apathy and Impulsivity in Frontotemporal Lobar Degeneration Ian Coyle-Gilchrist Frontotemporal Lobar Degeneration (FTLD) is pathologically heterogeneous group of degenerative diseases of the brain. While there are distinct and highly recognisable clinical syndromes associated with FTLD there is …
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ADHD SYMPTOMS, IMPULSIVITY AND ENTREPRENEURIAL ACTION THREE ESSAYS
… I focus on the ADHD symptoms (i.e., inattention, impulsivity and hyperactivity symptoms) instead of the ADHD diagnosis due to the fact that ADHD has been found to be a continuous attribute among the population. Three essays are included in this dissertation. The first essay (chapter 2) is a …
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Impulsivity and frontal asymmetry in substance-dependent individuals.
… with impulsive and aggressive behaviors. Impulsivity has also been shown to play an important role in substance dependence as an antecedent and consequence of drug use. Past research has suggested that impulsivity is a multi-dimensional construct, with characteristic factors observed …
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Apathy and Impulsivity in Frontotemporal Lobar Degeneration Syndromes
… methods to investigate apathy and impulsivity. These two multifaceted constructs are observed across all frontotemporal lobar degeneration syndromes, including frontotemporal dementia, progressive supranuclear palsy and corticobasal syndrome. They cause substantial patient morbidity …
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Behavioral impulsivity and hallucinations : insights from Parkinson's disease
Parkinson's disease (PD) is an age-related degenerative disease of the brain, characterized by motor, cognitive, and psychiatric symptoms. Neurologists and neuroscientists now understand that several symptoms of the disease, including hallucinations and impulse control behaviors, stem from the …
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Selective Attention, Reflection-Impulsivity and the Learning Disabled Child.
… types of subjects.With respect to the reflection-impulsivity dimension, it was hypothesized that one's tendency toward reflection or impulsivity affected one's academic achievement. Impulsives were, therefore, expected to perform worse than their reflective counterparts, as indicated by a higher …
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Experimental and self-reported measures of impulsivity: A reconsideration
Impulsivity is a complex construct that most people seem to understand intuitively, but ordinarily struggle to define precisely. This term readily lends itself to everyday definitions, including acting without thinking, rash and quick decisions, and impatience. However, definitional issues …
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Psychometric And Experimental Investigation Of Impulsivity, Rumination, Revenge, And Forgiveness
… and tendencies might also be predicted by impulsivity. Two studies were conducted to investigate these possibilities. In Study 1 participants (N = 200) completed individual differences measures of impulsivity, rumination, procedural and distributive just world beliefs, and measures of …
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Arousal theory and the interrelationships of caffeine, nicotine and impulsivity
Nicotine, caffeine, impulsivity, and arousal are all intercorrelated: both drugs increase arousal, and impulsivity is theoretically related to arousal. However, the independent and joint effects of nicotine and caffeine on impulsive behavior are unclear. In this study, male college students (N = …
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Impulsivity and risk-taking in clinical and non-clinical populations
Various aspects of impulsivity, including risk-taking, were investigated by comparing the responses of control groups with those of three populations that were believed to exhibit problems with impulse regulation: those with eating disorders, attention deficit hyperactivity disorder (ADHD) and …
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Impulsivity and Suicidal Ideation or Attempt in Younger and Older Adults
… Studies -- Depression Scale, the Barratt Impulsivity Scale, and the Suicidal Behaviors Scale -- Revised. The hypothesis was that the relation between impulsivity and suicidal ideation or attempt, in the context of depressive symptoms, would be stronger in younger adults than in older …
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Unmasking Impulsivity as a Glutamatergic Dysfunction Phenomenon: Presynaptic and Postsynaptic Considerations
… attributes, and motivation. Motor impulsivity refers to the inability to withhold a response or delay gratification, and efforts to unmask its complex neurobiology constitutes ongoing areas of research. Indeed, impulsivity has been characterized as a phenomenon driven by the …
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Cognitive Inhibition and Impulsivity in Adult Children of Alcoholics and Controls
… more likely to display disinhibited behavior and impulsivity (Pihl, Peterson, & Finn, 1990) and are more likely to develop drinking problems than the general population (Goodwin, 1971). Researchers have found patterns of cognitive deficits (Tartar, Jacob, Bremer, 1989) and neuropsychological …
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When Anxiety Meets Impulsivity: A Risk Factor for Poor Effortful Control
Long viewed as opposing traits, anxiety and impulsivity are increasingly recognized for their co-occurrence. Yet, effortful control (EC) in the context of impulsivity and anxiety remains underexplored. EC refers to a group of self-regulatory functions, including inhibitory control (IC), attentional …
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Impulsivity and Reward Sensitivity: Attentional and Emotional Factors Underlying Stimulus-Reward Learning
Increased impulsivity and alterations in reward sensitivity co-occur in many psychiatric disorders. Moreover, individuals reporting more impulsive traits are less efficient in learning stimulus-reward associations. This suggests that impulsivity and reward sensitivity may be linked, consistent with …
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Environmental Context Effects on Impulsivity and Subjective Craving in Caffeinated Alcohol Users
… craving and drinking through the influence on impulsivity. Thus, a bar context may elicit greater impulsivity, which in turn, increases one’s craving for alcohol or CAB. Consequently, the present study sought: (1) to determine the influence of an environmental context (i.e., bar simulated lab) …
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