Mean scalp EEG power for theta, alpha, and beta bands for the intervention sample.

<p>Care as usual group (CAUG; <i>N</i> = 48); Foster care group (FCG; <i>N</i> = 53); M (S.D.).</p

EEG scalp distribution of alpha power.

<p>(a) Scalp topography of alpha power demonstrating the timing effects for care-as-usual group (CAUG; <i>N</i> = 48), foster care group placed after 24-months (>24mo FCG; <i>N</i> = 28), foster care group placed before 24-months (<24mo FCG; <i>N</i> = 25), and the never-institutionalized (NIG; <i>N</i> = 42) group. (b) Mean alpha power across the sites for each group (* <i>p</i><.05; *** <i>p</i><.005).</p

Mean ERD at C3 and C4 during tool use observation: <i>mu</i> band (panel A), and <i>beta</i> band (panel B).+ <i>p</i> = .05; ** <i>p</i><.01.

<p>Mean ERD at C3 and C4 during tool use observation: <i>mu</i> band (panel A), and <i>beta</i> band (panel B).+ <i>p</i> = .05; ** <i>p</i><.01.</p

Mean ERD by group at frontal, parietal, and occipital sites during tool use observation: <i>alpha</i> band (panel A), and <i>beta</i> band (panel B).

<p>* <i>p</i><.05, ** <i>p</i><.01.</p

Example of the baseline stimulus (panel A) and the observation trial (panel B).

<p>Example of the baseline stimulus (panel A) and the observation trial (panel B).</p