Correlations between the neuropsychological tests and gray matter volume in the right middle temporal pole. (A) The right middle temporal pole volume positively correlated with the AVLT-delay recall in all subjects (r = 0.25, P = 0.028). (B) The right middle temporal pole volume positively correlated with the AVLT-delay recall in the CT/TT group (r = 0.56, P = 0.002). (C) The right middle temporal pole volume positively correlated with the AVLT-total in all subjects (r = 0.30, P = 0.008). (D) The right middle temporal pole volume tended to positively correlate with the AVLT-total in the CT/TT group (r = 0.42, P = 0.023). AVLT, Auditory Verbal Learning Test.