topographic organization

the arrangement of components in a structure, particularly the orderly spatial relationship between the distribution of neural receptors in an area of the body and a related distribution of neurons representing the same functions in cortical sensory regions of the brain. Thus, the motor cortex shows somatotopic organization, the primary visual cortex shows a topographic mapping of the retina (see retinotopic map), and the auditory system shows tonotopic organization.

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Psychology term of the day

May 8th 2024

linear correlation

a measure of the degree of association between two variables that are assumed to have a linear relationship, that is, to be related in such a manner that their values form a straight line when plotted on a graph. It provides an index of the degree of constant change in the value of one variable (y) for each unit change in the value of another variable (x).