The normal emergence of the superior collicular map of auditory space in the guinea pig following developmental removal of visual cortex.
The normal development of the superior collicular map of auditory space in the guinea pig requires visual experience (Eur. J. Neurosci., 2 (1990) 682-692). The possible role of the visual cortex in this process was assessed by unilateral removal of the cortex prior to the crucial period during which visual experience is needed (Neurosci. Lett., 116 (190) 280-286). This removal did not affect the normal emergence of an ordered auditory space map in the superior colliculus. The cortico-tectal pathway does not appear, therefore, to play an essential role in the developmental dependence of the collicular auditory map upon visual experience.
Withington
D J
DJ
National Institute for Medical Research, London, U.K.
Binns
K E
KE
Keating
M J
MJ
D000161:Acoustic Stimulation; D000818:Animals; D001307:Auditory Perception; D001931:Brain Mapping; D004594:Electrophysiology / Q000379:methods; D006168:Guinea Pigs; D013477:Superior Colliculi / Q000033:anatomy & histology / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology*