NIKI Chiharu    Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine    Position
Language	English
Title	Frontal function for performing familiar action task normally: evidence from patients with frontal lobe damage
Conference	The 44th Naito Conference on"Decision Making in the Brain-Motivation, Prediction, and Learning"
Conference Type	International society and overseas society
Presentation Type	Poster notice
Lecture Type	General
Publisher and common publisher	◎NIKI Chiharu, KUMADA,Takatsune KUMADA,Takatsune, MARUYAMA Takashi, TAMURA Manabu, MURAGAKI Yoshihiro
Date	2017/10/05
Venue (city and name of the country)	Sapporo
Society abstract	The 44th Naito Conference on "Decision Making in the Brain-Motivation, Prediction, and Learning" Program Abstract 96
Summary	Introduction Patients with right frontal lobe damage who showed using unnecessary objects when performing familiar sequential tasks were reported as action disinhibition syndrome (ADIS)(Niki et al., 2009). For example, both objects using for wrap a gift and those for calligraphy were presented to the patients and they asked to wrap a gift, one of the patients wrote a message for the gift using calligraphy. It is suggested that suppress using unnecessary objects for a goal of behaviour and lead suitable behaviours would be impaired. Furthermore, maintain behaviours in accordance with contexts of various scenes would be impaired. However, qualities of performing target sequences themselves are changed or not after frontal lobe damage have not been illuminated. In this study, we investigated whether quality of performance of patients with brain tumor was changed before and after surgery. Methods Patients: 10 patients with glioma in frontal lobe (9 right hemisphere, 1 left hemisphere, mean age=40.1) participated. All patients had undergone a neurosurgical resective operation. No patients had paralysis and paresis after surgery. Task: Two single tasks and three distractor object-paired-tasks were administered twice, before and 6 months after surgery. For each the two single tasks, real objects necessary to perform only the target task were presented to the patients. For three distractor object-paired-t asks, in addition to real objects necessary to perform the target tasks, distractor objects that would not be normally used were presented to them. Patients were instructed to perform the target task using the objects they wanted to use and also told that they did not need to use all of the presented objects. The behavior of them was videotaped. Action errors were classified nine categories: Omission, Semantic, Incompleteness, Perseveration, Repetition, Sequence, Toying, Addition, Distractor. For example, when failing to put a stamp to an envelope, classified as Omission error. When unnecessary objects were used to perform the target task, classified as Distr actor error. To qualify contents of performing the target task, duration of performing tasks and that of writing a message were analyzed. <BR>