PSYC23H3 Chapter Notes - Chapter 6: Adrenal Cortex
Document Summary
Acquire the ability to discriminate, prefer, approach, and maintain proximity to their own: human newborns: Can distinguish their own mother"s smell, and add vocal and visual recognition: prenatal predispositions, rat neonates: Fetus responds preferentially to specific maternal scents and sounds mothers postnatally: aversion: for an odor previously associated with it; after 10 days after birth, associative pairing results in avoidance of the odor. First 10 days after birth, an aversive level of stimulation will induce approach and preference. Rem-sleep time was sharply decreased and slow-wave sleep was. Early termination of the relationship, before the usual time of weaning: Did not affect the expected percent vulnerability when rats were stress in adulthood, but in early adolescence, 80% of the early-weaned rats developed ulcers, and these were larger and deeper than those occurring in adults: no normally reared rats developed ulcers at these ages.
