Table 2. Acute sensory stimulation does not affect the numerical densities of ERα-positive cells across cortical layers of V1.

Layers/Group	Control	30 min	1 h	2 h
Supragranular	15.4±1.4	16.2±1.6	14.9±1.7	15.5±1.5
Granular	15.9±1.6	16.4±1.8	16.1±1.5	15.9±1.7
Infragranular	18.2±1.7	17.0±1.4	17.3±1.6	17.6±1.9

Data are expressed as mean ×10³ neurons/mm³ ± S.E. No significant differences were detected across groups for all cortical layers (all p>0.05).