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Full-Text Articles in Experimental Analysis of Behavior
The Role Of Acetylcholine In Attention And Lapses In Attention In Rats Using The Mode And Deviation From Mode Of Reaction Time Latency, Scott Lee Mitchell
The Role Of Acetylcholine In Attention And Lapses In Attention In Rats Using The Mode And Deviation From Mode Of Reaction Time Latency, Scott Lee Mitchell
Electronic Theses and Dissertations
Attention Deficit-Hyperactivity Disorder (ADHD) is currently the neurodevelopmental disorder most commonly diagnosed in children in the United States, and one of the defining characteristics of ADHD is inattention. Inattention is marked by increased lapses in attention, and when assessed clinically, it has been highly correlated with reaction-time variability (RTV). Evidence from the human/clinical literature has shown an inherently higher RTV to be the primary quantitative indicator of an ADHD diagnosis. Reaction-time distributions are characterized by an asymmetrical rightward skew, and because of the prevalence of this presentation, it has been theorized that the distribution peak and skew represent separate phenomena, …
Reward And Punishment: The Neural Correlates Of Reinforcement Feedback During Motor Learning, Christopher Mark Hill
Reward And Punishment: The Neural Correlates Of Reinforcement Feedback During Motor Learning, Christopher Mark Hill
Electronic Theses and Dissertations
‘By the carrot or the stick’ reward or punishment has been contemplated by instructors to motivate their pupils to learn a new motor skill. The reinforcements of reward and punishment have demonstrated dissociable effects on motor learning with punishment enhancing the learning rate and reward increasing retention of the motor task. However it is still unclear how the brain processes reward and punishment during motor learning. This study sought to investigate the role of reinforcement feedback in cortical neural activity associated with motor learning. A novel visuomotor rotation task was employed with reward punishment or null feedback as the participants …
The Influence Of Recall Instructions On The Verbal Overshadowing Effect, Melissa Ann Baker
The Influence Of Recall Instructions On The Verbal Overshadowing Effect, Melissa Ann Baker
Electronic Theses and Dissertations
The current study investigated the influence of recall instructions on the verbal overshadowing effect (VOE). Participants watched a video of a burglar breaking and entering, were asked to recall information about the burglar, and attempted to identify the burglar from a photo lineup. Recall instructions were varied between participants. In Experiment 1, participants in a ‘general recall’ instruction condition were instructed to provide a description of the burglar’s physical appearance. Participants in a ‘face recall’ instruction condition were asked to provide a description of the burglar’s facial features. A control group of participants, the ‘no recall’ instruction condition, were not …
Evaluating Preference-Seeking And Aversive Qualities Of Salvia Divinorumand Mitragyna Speciosa, Melissa Jane Loria
Evaluating Preference-Seeking And Aversive Qualities Of Salvia Divinorumand Mitragyna Speciosa, Melissa Jane Loria
Electronic Theses and Dissertations
Use of botanicals for self-diagnosed conditions or recreational purposes is increasing. Many readily available botanicals are under-researched and little is known about potential liabilities. This study sought to utilize Conditioned Place Preference (CPP) to quantify rewarding or aversive properties of botanicals and their constituents in rats. This paradigm is based on the notion that animals prefer distinct environments previously paired with rewarding drugs. Our approach to broadly characterize a botanical and its many constituents entails dose response functions of a plant extract, its fractions, and its primary constituent. As a proof of concept, we chose two popular botanicals, one expected …