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. 2017 May 11;11:89. doi: 10.3389/fnbeh.2017.00089

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Copyright © 2017 Faraji, Soltanpour, Ambeskovic, Zucchi, Beaumier, Kovalchuk and Metz.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Improved skilled reaching performance in stressed rats is offset by cortical ischemic lesion. (A) Illustration of a skilled reaching apparatus. Rats were required to reach and retrieve food pellets with the forelimb contralateral to the ischemic lesion. (B) Pre-ischemic reaching success showed that multigenerational PS promoted reaching success compared to non-stressed (stroke-only and stress + stroke) animals. Post-ischemic acute (C) and chronic measures (D) of reaching success showed significant differences between groups on days 1–8 and 9–16. Reaching success on day 8 in STRESS-only and STRESS + STROKE groups was significantly higher than other groups. Note that ischemic lesion in the stressed animals abolished the advantage of MPS in reaching success. Asterisks indicate significant differences: *p < 0.05, ANOVA.