Download or read book Effects of Pavlovian Discrimination Training on Stimulus Control of Shuttle Avoidance in Rats written by James F. Brennan and published by . This book was released on 1972 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Discrimination Training on Stimulus Control in Infant and Adult Rats written by Jeanne P. Frieman and published by . This book was released on 1969 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Extramodal Discrimination Training Upon Stimulus Control written by Thomas Allen Smith and published by . This book was released on 1971 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aversive Conditioning and Learning written by F. Robert Brush and published by . This book was released on 1971 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stimulus Control and the Post discrimination Gradient written by Thomas A. Clarkson and published by . This book was released on 1970 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Discrimination Training on Multidimensional Stimulus Control in Humans written by David Phillip McGourty and published by . This book was released on 1970 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Discrimination Training on the Development of Stimulus Control by Single Dimensions of a Compound Stimulus written by Sheila Chase and published by . This book was released on 1966 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contextually Modulated Avoidance Behavior in Rats Post pavlovian Extinction written by Lauren Branigan and published by . This book was released on 2018 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following study sought to examine the psychological substrates of renewal (e.g.., context dependent extinction processes) for conditioned avoidance behaviors in rats. Using signaled active avoidance conditioning, rats acquired two-way shuttle responding, to two different auditory stimuli. These behaviors were then extinguished through exposure to the auditory stimuli where shuttling behavior was now without consequence. Subjects were then tested for renewal of avoidance in three distinct renewal sequences (e.g., ABA vs ABB, AAB vs AAA, and ABC vs ABB) in three separate groups of rats. It was found that subjects showed more responding to a stimulus presented outside of its extinction context compared to control tests where the cue was presented in the extinction context. This study furthers our understanding of the psychological representation of extinction as it relates to the effects of contextual modulation upon renewal of avoidance behavior.
Download or read book The Effects of Amount of Training and Stimulus Timing on Shuttle box Avoidance Responding with Rats Receiving Serial Overlapping Compound Stimuli written by Robert Allen Laidlaw and published by . This book was released on 1977 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Conditional Discrimination Training on Object Identification written by Carolyn S. Ryan and published by . This book was released on 2006 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Stimulus Control Functions Following Discrimination Training Using a DRL Schedule of Reinforcement written by Kathleen M. Krafft and published by . This book was released on 1977 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Principles of Learning and Behavior written by Michael Domjan and published by Arden Shakespeare. This book was released on 1982 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neuropsychology of Reinforcement Processes in the Rat written by Rudolf N. Cardinal and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigated the role played by regions of the prefrontal cortex and ventral striatum in the control of rats' behaviour by Pavlovian conditioned stimuli, and in their capacity to choose delayed reinforcement. First, the function of the anterior cingulate cortex (ACC) in simple Pavlovian conditioning tasks was addressed. The ACC is a subdivision of prefrontal cortex that has previously been suggested to be critical for the formation of stimulus-reward associations. It was found that lesions of the ACC did not prevent rats from learning a simple conditioned approach response to a conditioned stimulus (CS) predictive of food reward, or from utilizing that CS as a conditioned reinforcer subsequently. Additionally, these subjects successfully acquired a conditioned freezing response to a CS predicting footshock. However, the same animals were impaired at the acquisition of autoshaped behaviour, an impairment that has been demonstrated previously. An autoshaping deficit was also observed when lesions were made following training. The phenomenon of Pavlovian-instrumental transfer was intact in these subjects. The hypothesis was developed that the ACC is not critical for the formation of stimulus-reward associations per se, but is critical when multiple stimuli must be discriminated on the basis of their differential association with reward. In support of this hypothesis, animals with lesions of the ACC were impaired on a version of the conditioned approach task in which a second, neutral stimulus, perceptually similar to the CS, was added; the lesioned subjects exhibited reduced discrimination. Second, the role of the nucleus accumbens (Acb) in Pavlovian-instrumental transfer was investigated. The nucleus accumbens core, together with a larger amygdalar-striatal network of which it is a component, has previously been shown to be necessary for the expression of 'simple' Pavlovian-instrumental transfer. Rats with lesions of the nucleus accumbens core (AcbC) and shell (AcbSh) were tested on a 'response-specific' Pavlovian-instrumental transfer task, in which a Pavlovian CS selectively enhances instrumental responding for the outcome with which the CS was originally paired. AcbC lesions impaired the response specificity of this effect, while AcbSh lesions abolished Pavlovian-instrumental transfer entirely. These results are consistent with some - but not all - previous results in suggesting that the shell provides 'vigour' and the core provides 'direction' for the potentiation of behaviour by Pavlovian CSs. Third, an attempt was made to train rats on a task for assessing preference for delayed reinforcement, using the 'adjusting-delay' paradigm. It was not immediately apparent that the rats reacted to the contingencies operative in this task, and mathematical analysis of their behaviour was conducted to establish whether their behaviour was sensitive to the delay, and what 'molar' features of performance on this task could be explained by delay-independent processes. Fourth, a different delayed reinforcement choice task was developed, modifying a previously published task in which the subject is repeatedly offered a choice, in discrete trials, of a small reward delivered immediately, and a large reward delivered after a delay, with the delays systematically varied by the experimenter. Rats were trained on versions of this task in which the large, delayed reinforcer was or was not explicitly signalled by a cue present during the delay. The behavioural basis of performance on this task was examined, and d-amphetamine, chlordiazepoxide, and alpha-flupenthixol were administered systemically. It was found that the effects of d-amphetamine depended on whether the delayed reinforcer was signalled or unsignalled, increasing preference for signalled delayed reinforcement at some doses, but decreasing preference for unsignalled delayed reinforcement. These results may resolve contradictions in the literature, and are suggested to reflect the known effect of amphetamine to potentiate responding for conditioned reinforcers. Fifth, rats that had been trained on this task (with no explicit signals present during the delay) were given lesions of the ACC, AcbC, or medial prefrontal cortex (mPFC). ACC-lesioned rats were no different from sham-operated controls in their ability to choose a large, delayed reinforcer. Lesions of mPFC reduced the tendency of subjects to shift from one lever to the other during the course of a session, but mPFC-lesioned subjects responded normally to removal of the delays, suggesting a loss of stimulus control. However, rats with lesions of the AcbC were severely impaired on this task, preferring the small, immediate reward, even though they discriminated the reinforcers. Additionally, the effects of intra-Acb amphetamine were assessed using a different version of the delayed reinforcement choice task, and found to have slight but inconsistent effects to reduce preference for the delayed reinforcer, though this effect did not depend on whether the delayed reward was signalled or unsignalled. These results suggest that the AcbC contributes significantly to the rat's ability to choose a delayed reward, a finding that has important implications for the understanding of Acb function. It is suggested that dysfunction of the AcbC may be a key element in the pathology of impulsivity.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1977 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1997 with total page 1850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index 1861 1972 Psychology written by Xerox University Microfilms and published by . This book was released on 1973 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habituation written by Thomas J. Tighe and published by Routledge. This book was released on 2016-07-15 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1976, this volume is based on a conference held in 1974. The purpose of the conference was to foster communication between those researchers studying habituation or closely related processes in children and those studying habituation at the level of neurophysiology and animal behaviour. Within each of these groups there was burgeoning interest in habituation, yet there had been little, if any, interaction between them. Overall, this volume provides a medium for cross-fertilization between animal-neurophysiological and developmental research on habituation, highlighting some of the current empirical and theoretical concerns within each area at the time. While other volumes may have provided more comprehensive and detailed reviews of aspects of habituation, the juxtaposition of developmental and animal neuro-physiological research provided in this text was unique in the literature at the time.
