cumulative record

a continuous tally or graph to which new data are added. In conditioning, for example, a cumulative record is a graph showing the cumulative number of responses over a continuous period of time. It is often used in such contexts to display performance of free-operant behavior under a schedule of reinforcement and provides a direct and continuous indicator of the rate of response.

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Psychology term of the day

May 9th 2024

granular cortex

the portion of the cerebral cortex that contains granule cells, which are located in layers II and IV of the cortex (see cortical layers). The term refers particularly to primary sensory cortex, in which layer IV (the major input area) is very thick. Compare agranular cortex.