parental behavior

Question 1

brain areas laugh and cry

Answer 1

. The study found that women but not
men, independent of their parental status, showed neural deactivation in the anterior cingulate
cortex, as indexed by decreased blood oxygenation level– dependent signal, in response to both
infant crying and laughing. Furthermore, the response pattern changed fundamentally with
parental experience: in the amygdale and interconnected limbic regions, parents (independent
of sex) showed stronger activation from crying, whereas nonparents showed stronger activation
from laughing.

Question 2

parturition

Answer 2

prenatal hormones + passage of pups through birth
canal