 Cognitive Remediation CRT: CRT COGPACK, Marker and Olbrich, 1998 consists of computerized practice tests for seven cognitive domains. There are 64 programs for testing and training, each with several variants for the domains of visuomotor skills, comprehension, reaction, vigilance, memory, language, and intellectual skills. Exercises in COGPACK can be edited and expanded. Patients attend 2 45-minutes each groups and 1 discussion group. 