Construct · 1 fields · 2 citations

column: a standalone construct

One name. One construct. A landmark on the map.

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column1 CONSTRUCTCortical columnMOUNTCASTLE · CORTEX

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Neuroscience

a vertical unit of cerebral cortex from surface to white matter, whose neurons across the layers share a functional property.

A cortical column is a vertical unit of cerebral cortex running from the pial surface to the white matter, within which neurons across the layers share a functional property. Mountcastle found in 1957 that cells in the cat's somatosensory cortex met along a vertical electrode penetration responded to the same modality and the same patch of skin, and he named this arrangement the column. Hubel and Wiesel carried the idea into the visual cortex, mapping orientation and ocular-dominance columns. The referent is a population of neurons defined by a shared response, and its unit is a vertical block of cortex a fraction of a millimetre across. It shares the word with a database field and a steel member, but here it names an organising principle of the brain, where the vertical dimension carries a common function and moving sideways steps through the map.[1][2]

Unit
A vertical block of cortex whose neurons share a response property
Recovery means
Not applicable
Measured by
Column width, tuning across cortical depth, and modality or orientation preference

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Nearby constructs

queue3 fields · 5 citationsjingle · one word, three constructsattribute3 fields · 5 citationsjingle · one word, three constructsrelation4 fields · 4 citationsjingle · one word, four constructs

References

  1. Mountcastle, V. B. (1957). Modality and topographic properties of single neurons of cat's somatic sensory cortex. Journal of Neurophysiology, 20(4), 408–434. https://doi.org/10.1152/jn.1957.20.4.408
  2. Hubel, D. H., & Wiesel, T. N. (1962). Receptive fields, binocular interaction and functional architecture in the cat's visual cortex. The Journal of Physiology, 160(1), 106–154. https://doi.org/10.1113/jphysiol.1962.sp006837

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