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Lack of SST enhances SCN encoding of long day photoperiods. (A) Representative double-plotted wheel-running actograms and individual SCN phase maps of mice entrained to L20 for 4 wk. (B) Lack of SST increased alpha compression in L20 males. (C) Lack of SST increased SCN reorganization in L20 males. (D) Lack of SST did not affect SCN period. †Wild-type sex difference, *Genotype difference, post hoc comparisons, P < 0.05.
