Columnar Lesions in Barrel Cortex Persistently Degrade Object Location Discrimination Performance.

Despite the greater difficulty in learning this task, mice still showed only a very weakly significant performance decline immediately following a columnar-scale lesion in vS1, which recovered by the next day (performance before lesion, 73.9 ± 2.2%; performance after lesion, 69.8 ± 2.5%; p = 0.039; n = 7; performance on second post lesion day, 77.7 ± 1.4%, p = 0.080, n = 7; Fig. 8 C ).

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