TABLE 2.

Time in Seconds for Four Major Contents of Head-Camera Images in Experiment 2 (Excluded Are Times When the Head Camera Is Directed Away From the Table) for the 5 Participants

Participant	PF	PHO	CHO	O	Total Duration
1	15.9	55.8	258.7	39.3	369.7
2	13.5	128.6	219.6	94.6	456.3
3	35.7	116.4	220.9	100.4	473.4
4	17.3	210.7	239.5	73.7	541.2
5	43.5	156.8	155.0	52.6	407.8
Mean time (sec)	25.2	133.6	218.7	72.1	449.7
Proportion frames	.06	.31	.51	.17

Note. PF = the parent’s face; PHO = parent’s hand on an object; CHO = child’s hand on an object; O = object (or objects) without hand in contact. These categories are not strictly mutually exclusive, although in practice they virtually are, and thus the sum of the proportions of total frames with these contents given at the bottom of the table slightly exceeds 100%.