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Full-Text Articles in Psychology

Risky Alcohol Use And Age At Onset Of Regular Alcohol Consumption In Relation To Frontal Lobe Indices, Reward Sensitivity And Rash Impulsiveness, Michael Lyvers, Helen Duff, Penelope Hasking Oct 2012

Risky Alcohol Use And Age At Onset Of Regular Alcohol Consumption In Relation To Frontal Lobe Indices, Reward Sensitivity And Rash Impulsiveness, Michael Lyvers, Helen Duff, Penelope Hasking

Mike Lyvers

Excessive alcohol consumption has been linked to predisposing traits that may reflect frontal lobe functioning, an idea explored by this study. The study recruited 132 adults of both genders aged 18-68 years who completed an online questionnaire battery. Sensitivity to punishment was the primary variable associated with age of onset for weekly drinking. The relationship between disinhibition and drinking behavior, as assessed by the AUDIT, was partially mediated by sensitivity to reward. The findings of this study suggest that several interrelated and heritable personality and neurobehavioral traits may promote earlier as well as riskier alcohol consumption.


Strengthening The Case Against Functionally Significant Serotonergic Neurotoxicity In Human Mdma (Ecstasy) Users, Michael Lyvers Oct 2012

Strengthening The Case Against Functionally Significant Serotonergic Neurotoxicity In Human Mdma (Ecstasy) Users, Michael Lyvers

Mike Lyvers

Extract:Halpern and colleagues [1] have overcome some of the methodological issues raised previously [2] concerning their initial pilot study of ecstasy users [3]. Their latest study [1] found that of 15 neuropsychological tests tapping various cognitive and memory functions reported previously by others to differentiate ecstasy users from controls, only the Revised Strategy Applications Test (RSAT) showed a clear indication of poorer performance in heavy (but not moderate) ecstasy users compared to controls, ecstasy users were selected for low exposure to other illicit drugs and alcohol, whereas in most other studies of this type the influence of potentially confounding associations …