N. Neave et al., LACK OF EFFECT OF DORSOMEDIAL THALAMIC LESIONS ON AUTOMATED TESTS OF SPATIAL MEMORY IN THE RAT, Behavioural brain research, 55(1), 1993, pp. 39-49
The effects of cytotoxic lesions of nucleus medialis dorsalis on tests
of spatial memory were examined in the rat. Extensive lesions of the
nucleus did not impair either the acquisition or the subsequent perfor
mance of an automated test of working memory, delayed nonmatching-to-p
osition. Detailed analysis of the animals' performance over varying re
tention delays failed to reveal any evidence of a deficit. The same an
imals performed normally in a spatial discrimination task and its subs
equent reversals. The present results can be contrasted with those fro
m animals with hippocampal system damage.