Fig. 3.
Region-specific effects of CRF-like peptides. Context- and tone-dependent fear conditioning after i.h. (a), i.s. (b), intracortical (c), or intracaudate (e) injection of 20 pmol peptide per mouse. Additional mice subjected to i.h. treatment but without receiving a shock (no shock) were used to test whether i.h. injection of h/rCRF produced immobility or place aversion (a). Statistically significant differences: *p < 0.01 versus aCSF; **p < 0.001 versus aCSF.
