Discrimination-reversal skills in squirrel monkeys: The reversal index and the reversal-acquisition ratio compared

Anticoagulation Strategies for the Orthopaedic Surgeon: Reversal and Timelines

Article Highlights: 1) This article provides a full anticoagulant reference for the practicing orthopaedic surgeon which can be used in any clinical scenario, whether urgent or elective surgical intervention is required 2) A comprehensive list of anticoagulant reversal agents and drugs with short half-lives (for bridging) are described with the intention to provide the data needed t...

Discrimination Reversal Learning in Capuchin Monkeys (Cebus apella)

Pretraining and discrimination reversal learning by rhesus monkeys

Groups of five to seven macaques were trained on repeated reversals of a visual (or spatial) discrimination habitafter no pretraining, extended discrimination training, or repeated reversal training on spatial (or visual) cues. Neither sortof pretraining had a significant effect on reversal learning on the second cue. These results indicate that monkeys' capacity to develop generalized "win-sta...

Discrimination Reversal after Lateral Frontal Lesions in Monkeys

Monkeys impaired on delayed response following midlateral frontal lesions, control operatees, and unoperated Ss were tested on 2 discrimination reversals. In Experiment 1 Ss were repeatedly tested for reversal of a discrimination within a session and retention of the same discrimination over 24 hr. Each reversal phase and each retention phase consisted of 30 trials. The frontal operatees made m...

Reversal behavior in split-brain monkeys.

JOHNSON, J. D. AND M. S. GAZZANIGA. Reversal behavior in split-brain monkeys. PHYSIOL. BEHAV. 6 (6) 707--709, 1971.Using split-brain monkeys, reversal behavior was observed under two conditions. In the first both hemispheres viewed the discrimination cues. Previous to this one hemisphere had been taught to respond to one cue and the other hemisphere had learned the opposite response. The task w...