Ces radiol. 2010, 64(4):290-294

Visual Perception and Visual Imagination - fMRI studyOriginal article

Radovan Vaňatka1, Marián Chalani2, Zuzana Bilická2, Katarína Slávikova1, Jana Mištinová1
1 I. rádiologická klinika LF UK a UNB, Bratislava, Slovenská republika
2 CT a MR-pracovisko, Rádiológia s.r.o., Bratislava, Slovenská republika

Aim: Our fMRI study was focused to relationship between brain activation pattern as registred by fMRI during visual perception and visual imagination. As we supposed, brain activation pattern during visual perception would be similar to that of visual imagination.

Material and methods: We examined twelve patients (5 women and 7 men). We compared the cortical regions activated during both visual perception and visual imagination and distinguished three levels of similarity.

Results: The cortical regions activated during both visual perception and visual imagination were found to be highly or moderately similar each other in 58% of participants (7 of 12), predominantly in men (1 woman, 6 men) - probably due to individual ability of visual imanigation.

Conclusion: Visual imagination itself is able to activate brain visual cortical regions - it have to influence interpretation of fMRI and occasionally it can be used as an activation stimulus for visual cortex fMRI assessment.

Keywords: brain, functional magnetic resonance imaging, imagination, perception

Accepted: November 1, 2010; Published: December 1, 2010  Show citation

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Vaňatka R, Chalani M, Bilická Z, Slávikova K, Mištinová J. Visual Perception and Visual Imagination - fMRI study. Ces radiol. 2010;64(4):290-294.
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