ISSN:
1432-1106
Keywords:
Mouse somatosensory system
;
Barrel
;
Mystacial vibrissae
;
Sensory innervation density
;
Brain evolution
;
Cortical magnification factor
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00237487
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