Table 1.

Summary of hypotheses

	Primary habituation analyses			PPI analyses
	Broca's area	R MTG/ITG	Attention-related brain regions	Connectivity between Broca'sarea and attention regions
Anxious apprehension	↓over time	n/a	↑over time	↓connectivity
Anxious arousal	n/a	↓over time	↓over time	–

R, right; MTG, middle temporal gyrus; ITG, inferior temporal gyrus. Attention-related brain regions, dorsolateral prefrontal cortex, frontal eye fields, anterior cingulate, and amygdala. ↓over time, anxiety type predicted to show greater decrease in activation over time; ↑over time, anxiety type predicted to show greater increase in activation over time; ↓connectivity, anxiety type expected to show a greater decrease in condition-dependent connectivity; –, no prediction made.