Ocular dominance affects magnitude of dipole moment: An MEG study

Hiroshi Shima, Mitsuhiro Hasegawa, Osamu Tachibana, Motohiro Nomura, Junkoh Yamashita, Yuzo Ozaki, Jun Kawai, Masanori Higuchi, Hisashi Kado

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Abstract

To investigate whether the ocular dominance affects laterality in the activity of the primary visual cortex, we examined the relationship between the ocular dominance and latency or dipole moment measured by checkerboard-pattern and magnetoencephalography in 11 right-handed healthy male participants. Participants with left-eye dominance showed a dipole moment of 21.5±6.1 nAm with left-eye stimulation and 16.1±3.6 nAm with right, whereas those with right-eye dominance showed a dipole moment of 18.0±5.2 and 21.5±2.7 nAm with left-eye and right-eye stimulation of the infero-medial quadrant visual field, respectively. Thus, the dipole moment was higher when the dominant eye was stimulated, which implies that ocular dominance is regulated by the ipsilateral occipital lobe.

Original languageEnglish
Pages (from-to)817-821
Number of pages5
JournalNeuroreport
Volume21
Issue number12
DOIs
Publication statusPublished - 23-08-2010

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

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    Shima, H., Hasegawa, M., Tachibana, O., Nomura, M., Yamashita, J., Ozaki, Y., Kawai, J., Higuchi, M., & Kado, H. (2010). Ocular dominance affects magnitude of dipole moment: An MEG study. Neuroreport, 21(12), 817-821. https://doi.org/10.1097/WNR.0b013e32833ce5d7