Formation of cognitive structures in conditioned-reflex behavior in monkeys: Relationship with type of visual information.

Neuroscience and Behavioral Physiology
K N Dudkin, I V Chueva

Abstract

The characteristics of learning processes and long-term memory (LTM) were studied in rhesus macaques discriminating visual stimuli (geometrical figures of different shapes, sizes, and orientations, and with different spatial relationships between image components). Trained monkeys were tested for the ability to perform invariant recognition after stimulus transformation, i.e., changes in size, shape, number of objects, and spatial relationships. Analysis of behavioral characteristics (correct solutions, refusals to decide, motor response times) revealed differences associated with the type of visual information. When monkeys discriminated between black and white geometrical figures of different shapes and orientations, as well as black-and-white figures with different shapes or orientations, the learning time was short and transformation of the stimuli had no effect on correct solutions: there was complete transfer of learning. When monkeys discriminated figures of different sizes or complex images with different spatial relationships, the learning time was significantly greater. Changes in the size and shape of figures led to significant reductions in correct solutions and significant increases in refusals to solve the task an...Continue Reading

References

Aug 27, 2002·Experimental Brain Research·Yusuke Z TanakaAkichika Mikami
Mar 17, 2004·Journal of Clinical Psychology·Irving KirschRalph R Miller

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