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Digitale Medien

Is areal extent in sensory cerebral cortex determined by peripheral innervation density? (1986)

Welker, E. ; Loos, H.

Springer

Experimental brain research 63 (1986), S. 650-654

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Details

ISSN: 1432-1106

Schlagwort(e): Mouse somatosensory system ; Barrel ; Mystacial vibrissae ; Sensory innervation density ; Brain evolution ; Cortical magnification factor

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Summary The whisker-to-barrel pathway of mice (an important component of the animal's somatosensory system) was studied in two experiments. In one, the cortical representation of a row of whiskers was caused to be larger by lesioning a neighbouring row of follicles, while the innervation density remained unchanged. In the second experiment mice, selectively bred for particular whisker and barrel patterns, showed for their supernumerary vibrissal follicles a relatively large cortical representation. On the basis of the second experiment we formulate a possible role of the sensory periphery in brain evolution.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00237487

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