Paper Info
Title
Brain activation during a manipulative task and working memory hypothesis
Abstract
Working memory is an active memory that plays a major role in executing manipulative and cognitive tasks. One of the most important functions of working memory is monitoring one's own on-going activities to properly execute goal-directed actions. There is some evidence that the dorsolateral prefrontal cortex (DLPFC) can be associated with working memory and it is proposed that the use of the DLPFC decreases as a human develops motor skills. In the present study, we investigated the activation of the DLPFC of the brain in Brodmann's areas 9 and 46 in drawing tasks to examine whether near-infrared spectroscopy (NIRS) can measure the changes of the DLPFC activation as a human develops motor skills. NIRS can be used to monitor brain activation by measuring changes in the concentration of oxy- and deoxy-hemoglobin (Hb) which are reflected in different spectra in the near-infrared range. Because NIRS is a non-invasive, highly flexible and portable technique, it is very suitable to study brain activation when a human repeatedly performs a manipulative task, and may provide useful information to construct human adaptive mechatronics (HAM). Participants performed a mirror drawing task and a square drawing task using their non-dominant hand. In the mirror drawing task, the participant traced a star shape viewed only in a mirror. The square drawing did not involve a mirror and was expected to be simpler. The change in oxy-Hb concentration decreased as the participant repeated the drawing task in most participants. In conclusion, the activation of DLPFC decreases when a human develops manipulative tasks. Oxy-Hb data measured by NIRS can reflect the brain activity in the development of manipulative skills.
Year
DOI
Venue
2005
10.1109/ROMAN.2005.1513847
RO-MAN
Keywords
Field
DocType
biomedical measurement,brain,cognition,infrared spectroscopy,brain activation,cognitive tasks,dorsolateral prefrontal cortex,manipulative task,mirror drawing task,near-infrared spectroscopy,square drawing task,working memory hypothesis,human development,motor skills,near infrared spectroscopy,near infrared,indexing terms,working memory
Computer vision,Computer science,Motor skill,Working memory,Elementary cognitive task,Dorsolateral prefrontal cortex,Brain activation,Cognitive psychology,Drawing Tasks,Brain activity and meditation,Artificial intelligence,Cognition
Conference
ISBN
Citations 
PageRank 
0-7803-9274-4
2
0.96
References 
Authors
0
3
Name
Order
Citations
PageRank
Harumi Kobayashi1118.01
Suzuki, S.220.96
Tetsuya Yasuda376.18