... memory and mental balance test) because theydemonstrated a ceiling effect.Trail making tests A and BTrail making tests A and B have been commonly used and validated in the Indian population ... Ajita Nayak2 and Ramesh R Patel3Address: 1Tranwell Unit, Queen Elizabeth Hospital, Gateshead, Tyne and Wear, UK, 2BYL Nair Hospital, AL Nair Road, Mumbai, India and 3Bhatia Hospital, ... Srinivasan L, Thara R, Tirupati SN: Cognitive dysfunction and associated factors in patients with chronic schizophrenia.Indian J Psychiatry 2005, 47:139-143.16. Ananthanarayanan CV, Janakiramaiah...