Spontaneous Alternation in Monkeys

Spontaneous Alternation Behavior in Human Neutrophils

Effects of small frontal lesions on delayed alternation in monkeys.

THIS EXPERIME~ attempti to detie the ~ cortical lesion which wiU 4 disrupt a monkey’s performance on a dekyed-mpo= type of problem. If such a cortid focus can be preckly located, data from neuroanatomy and electrophysiology relating this cortid area to other cerebral structures might then be used to suggest the larger cerebral network, and, hence, the neural mechanism, which mediates this c~ of...

Spontaneous Metacognition in Rhesus Monkeys.

Metacognition is the ability to think about thinking. Although monitoring and controlling one's knowledge is a key feature of human cognition, its evolutionary origins are debated. In the current study, we examined whether rhesus monkeys (Macaca mulatta; N = 120) could make metacognitive inferences in a one-shot decision. Each monkey experienced one of four conditions, observing a human appeari...

Spontaneous alternation in marine crabs: invasive versus native species.

Organisms ranging from paramecia to humans tend to explore places that have been least recently explored, which is referred to as spontaneous alternation. Although organisms rely on different sources of information in alternating between places, the emergent behavioral pattern is likely advantageous during exploration and foraging. Under this rationale, continuous spontaneous alternation perfor...

Information sources in the delayed alternation task for normal and "frontal" monkeys.

Two studies are reported which demonstrate that in delayed alternation the spatial factor, though essential, serves primarily the sequential aspects of the task. Experiment 1 repli· cates with computer and additional controls an earlier study in which the ordinarily symmetric intertrial intervals were made asymmetric, Experiment 2 studies the effects on performance strategies of moving the plac...