其他摘要:Patients with memory disturbance after hemorrhage of the caudate nucleus are known to have good prognosis ; however, we experienced a case in which memory disturbance was prolonged after hemorrhage of the right caudate nucleus. A 46-year-old male came to our hospital 10 months after onset of symptoms because he had difficulties in performing activities of daily living (ADL) and work. His intellectual ability, frontal lobe function, and motivation were preserved, and projection from the caudate nuclei to the frontal lobe was preserved. His short-term memory was severely disturbed, however, so that he was unable to adapt to spaced retrieval training. During rehabilitation, he underwent perspective memory training, and a compensation method was introduced using an external aid with errorless learning. Post-training, the patientʼs existence recall improved, although content recall and short-term memory were still disturbed, and he could not obtain intentional recall. His recovery process was similar to that of temporal lobe amnesia. Disturbance in the process of memory consolidation caused by damage to the projection from the caudate nucleus to the medial temporal lobe may be the reason why memory disturbance was prolonged.