Table 1 gives the demographic characteristics of the depressed patients and healthy controls. About an equal number of patients and controls were males or females and there was no significant difference between groups in age or education level. All patients and controls were right handed and there was no difference between groups in handedness laterality quotient (LQ) on the Edinburgh Inventory (Oldfield, 1971). When compared to controls, the depressed patients had higher depression scores on the Beck Depression Inventory (BDI; Beck et al., 1961) and higher trait anxiety scores on the State-Trait Anxiety Index (STAI; Spielberger et al., 1983). There was no overlap of the BDI scores for patients (range = 15–43) and controls (range = 0–7).
