A test assessing organized visual search, planning, attention, set shifting, cognitive flexibility, and divided attention (Rabin, Barr, & Butler, 2005), all capacities thought to be executive in nature. Originally developed by Partington (Brown & Partington, 1942), it was first published as part of the Army Individual Test Battery (1984). The test is currently available in public domain (see Lezak, Howieson, Loring, Hannay, & Fischer, 2004; Strauss, Sherman, & Spreen, 2006). The standard trail-making test (TMT) contains two parts: Trails A and Trails B, which usually takes no more than 5–10 min to complete.

PSRS is a psychiatric assessment that has been modified from a longer form of the BPRS (Brief Psychiatric Rating Scale) to assess temporal paranoia or agitation. The PSRS consists of a 4-item Positive Symptom Rating Scale (1. Suspiciousness; 2. Unusual Thought Content; 3. Hallucinations; 4. Conceptual Disorganization). It is an interviewer-administered assessment. The responses for the Positive Symptom Rating Scale are rated on a 7-point scale (1. Not Present; through 7. Extremely Severe).

The SST is a computerized task that consists of five 1-minute epochs of serial subtraction with the minuend and subtrahend changed at the beginning of each minute based on each individual subject’s ability.