The occurrence of extra rapid eye movement sleep following REM sleep deprivation is known as

Diana has major depressive disorder. Most days, she feels very sad, but when her sister came and told her that she was going to be an aunt, Diana felt happy for a little while. She has been gaining weight and sleeping much of the day. Diana most likely has __________.

A. melancholic features B. double depression C. atypical features D. psychotic features

Explain the three ways in which infants coordinate their own attentional and emotional responses to objects and people with the responses of other people between 9 and 12 months (i.e., pointing and gesturing, joint attention, and social referencing)

What will be an ideal response?