The effects of addition and subtraction of eyes on learning in salamander larvae (Amblystoma punctatum)
1968; Elsevier BV; Volume: 8; Issue: 2 Linguagem: Inglês
10.1016/0006-8993(68)90047-4
ISSN1872-6240
AutoresCarl W. Schneider, Paul Pietsch,
Tópico(s)Retinal Development and Disorders
ResumoAre the limits on the utilization of information imposed by the processing capacity of the sense organs or the central nervous system? An answer to this question was sought by the addition to or subtraction of eyes from salamander larvae by transplantation or removal. The animals were then trained in a sight-dependent paradigm to determine what effect additional or reduced visual input had on initial learning and the maintenance of a learned response. The level of learning achieved increased in an apparent one-to-one fashion in line with the number of eyes the animal possessed. However, the results obtained from animals possessing only a supernumerary eye suggested that constraints were imposed centrally on the supernumerary eye of a three-eyed animal. Removal of an eye after acquisition had no apparent effect on extinction.
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