Table 2.

Definition of affective states: positive, neutral, negative.

Affective states	Codes
Infant positive	Social positive engagement, orientation to objects not offered by the mother, orientation to objects offered by the mother
Infant neutral	Social monitor, orientation to the environment, allows caretaking, allows comforting
Infant negative	Negative engagement
Mother positive	Social positive engagement, offer of object, involvement in play
Mother neutral	Social monitor, call for infant's attention, non-infant focused, caretaking, comfort
Mother negative	Negative engagement