Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (25)
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Dong, Y.
Right arrow Articles by Shibasaki, H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dong, Y.
Right arrow Articles by Shibasaki, H.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Brain, Vol. 123, No. 4, 790-799, April 2000
© 2000 Oxford University Press

Essential role of the right superior parietal cortex in Japanese kana mirror reading

An fMRI study

Yun Dong1, Hidenao Fukuyama1, Manabu Honda3, Tomohisa Okada2, Takashi Hanakawa1, Kimihiro Nakamura1, Yasuhiro Nagahama1, Takashi Nagamine1, Junji Konishi3 and Hiroshi Shibasaki1

1 Departments of Brain Pathophysiology and 2 Radiology and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto and 3 Department of Cerebral Research, Psychophysiology Section, National Institute for Physiological Sciences, Okazaki, Japan

Correspondence to: Hiroshi Shibasaki, MD, PhD, Department of Brain Pathophysiology, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan E-mail: shib{at}kuhp.kyoto-u.ac.jp

Functional magnetic resonance imaging (fMRI) was used to investigate the neural substrates responsible for Japanese kana mirror reading. Japanese kana words, arranged vertically from top to bottom, were used in the mirror reading task in 10 normal right-handed Japanese adults. Since both mirror-reversed and normally oriented kana items are read in the same (top to bottom) direction, it was possible to minimize the oculomotor effects which often occur in the process of mirror reading of alphabetical language. By using the SPM96 random effect analysis method, a significant increase in the blood oxygen level-dependent signal during mirror reading relative to normal reading was detected in multiple brain regions, including the bilateral superior occipital gyri, bilateral middle occipital gyri corresponding to Brodmann area (BA) 18/19, bilateral lingual gyri (BA 19), left inferior occipital gyrus (BA 18), left inferior temporal cortex (BA 37), bilateral fusiform gyri (BA 19), right superior parietal cortex (SPC) (BA 7), left inferior frontal gyrus (BA 44/45) and an inferior part of the left BA 6. In addition to these cortical regions, the right caudate nucleus and right cerebellum were also activated. The activation found in the right SPC and the left inferior temporal region is consistent with the hypothesis that mirror reading involves both the dorsal visuospatial and ventral object recognition pathways. In particular, a significant correlation was found between the fMRI signal change in the right SPC and the behavioural performance (error index) in the task. This may reflect increased demand on the right SPC for the spatial transformation which is required for the accurate recognition of mirror-reversed kana items. This relationship between the haemodynamic response in a specific brain area and the behavioural data provides new evidence for the essential role of the right SPC in Japanese kana mirror reading.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Cereb CortexHome page
B. Pelgrims, M. Andres, and E. Olivier
Double Dissociation between Motor and Visual Imagery in the Posterior Parietal Cortex
Cereb Cortex, October 1, 2009; 19(10): 2298 - 2307.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
R. Ilg, A. M. Wohlschlager, C. Gaser, Y. Liebau, R. Dauner, A. Woller, C. Zimmer, J. Zihl, and M. Muhlau
Gray Matter Increase Induced by Practice Correlates with Task-Specific Activation: A Combined Functional and Morphometric Magnetic Resonance Imaging Study
J. Neurosci., April 16, 2008; 28(16): 4210 - 4215.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
M. T. Dang, F. Yokoi, H. H. Yin, D. M. Lovinger, Y. Wang, and Y. Li
From the Cover: Disrupted motor learning and long-term synaptic plasticity in mice lacking NMDAR1 in the striatum
PNAS, October 10, 2006; 103(41): 15254 - 15259.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurol. Neurosurg. PsychiatryHome page
A L Cheesman, R A Barker, S J G Lewis, T W Robbins, A M Owen, and D J Brooks
Lateralisation of striatal function: evidence from 18F-dopa PET in Parkinson's disease
J. Neurol. Neurosurg. Psychiatry, September 1, 2005; 76(9): 1204 - 1210.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
J. W. Krakauer, M.-F. Ghilardi, M. Mentis, A. Barnes, M. Veytsman, D. Eidelberg, and C. Ghez
Differential Cortical and Subcortical Activations in Learning Rotations and Gains for Reaching: A PET Study
J Neurophysiol, February 1, 2004; 91(2): 924 - 933.
[Abstract] [Full Text] [PDF]

Home page
 Behav Cogn Neurosci RevHome page
R. A. Poldrack
Neural systems for perceptual skill learning.
Behav Cogn Neurosci Rev, March 1, 2002; 1(1): 76 - 83.
[Abstract] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.