GNRH1 and posterior cortical atrophy: However, Ihrig et al. reported significant deficits in word fluency and processing speed when using the trail-making test (TMT) and auditory verbal learning test (AVLT) in 139 ADT-treated PCa patients (mean ADT duration: 3.5 years for LH-RH analogues and 0.4 years for abiraterone) [56].