TY - JOUR
T1 - The relationship between retrieval success and task performance during the recognition of meaningless shapes
T2 - An event-related near-infrared spectroscopy study
AU - Sanefuji, Masafumi
AU - Nakashima, Taisuke
AU - Kira, Ryutaro
AU - Iwayama, Mariko
AU - Torisu, Hiroyuki
AU - Sakai, Yasunari
AU - Hara, Toshiro
N1 - Funding Information:
We thank Dr. Yoko Hoshi for the helpful discussion about NIRS data analysis; Dr. Nobutaka Endo for the valuable advice on the novel contour shapes; Dr. Syozo Tobimatsu for the helpful comments on this manuscript; Dr. Takashi Yoshiura for the MR images of subjects; Dr. Naoko Kinukawa for the statistical analysis; and Ms Kaori Hamamoto for the assistance with data collection. This work was supported in part by a Grant-in-Aid for Scientific Research to Ryutaro Kira from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2007/10
Y1 - 2007/10
N2 - Retrieval success of episodic memory has been studied intensively through the investigation of old/new effects. Recognized stimuli used in event-related functional magnetic resonance imaging studies on old/new effects have been words and visual materials which can evoke semantic associations. To elucidate the neural basis of retrieval success uninfluenced by semantic processing, we investigated the correlation between old/new effects and task performance during the recognition of meaningless shapes, by using event-related near-infrared spectroscopy. Forty-two right-handed subjects made recognition judgments about old (studied) or new (unstudied) meaningless shapes. The old/new effects of the shapes were positively correlated with task performance in the bilateral inferior lateral parietal cortex (ILP), but predominantly in the left ILP. This finding indicated that the ILP was directly associated with retrieval success and its lateralization was consistently left-sided irrespective of the type of stimulus.
AB - Retrieval success of episodic memory has been studied intensively through the investigation of old/new effects. Recognized stimuli used in event-related functional magnetic resonance imaging studies on old/new effects have been words and visual materials which can evoke semantic associations. To elucidate the neural basis of retrieval success uninfluenced by semantic processing, we investigated the correlation between old/new effects and task performance during the recognition of meaningless shapes, by using event-related near-infrared spectroscopy. Forty-two right-handed subjects made recognition judgments about old (studied) or new (unstudied) meaningless shapes. The old/new effects of the shapes were positively correlated with task performance in the bilateral inferior lateral parietal cortex (ILP), but predominantly in the left ILP. This finding indicated that the ILP was directly associated with retrieval success and its lateralization was consistently left-sided irrespective of the type of stimulus.
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U2 - 10.1016/j.neures.2007.06.1480
DO - 10.1016/j.neures.2007.06.1480
M3 - Article
C2 - 17720269
AN - SCOPUS:34548746403
SN - 0168-0102
VL - 59
SP - 191
EP - 198
JO - Neuroscience Research
JF - Neuroscience Research
IS - 2
ER -