Volume : III, Issue : IX, September - 2014

Ocular dominance and FMRI activation in response to various stimuli.

Jan Lestak, Jaroslav Tintera, Pavel Rozsival

Abstract :

The aim of the study was to determine whether functional magnetic resonance imaging (FMRI) activation in response to various types of stimulation is dependent on ocular dominance. Our sample included 20 eyes of 10 healthy subjects (8 female with the mean age of 50.25 and 2 male with the mean age of 59). None of the subjects had ocular or neurological diseases. All subjects were tested for sighting and sensory ocular dominance. All the control subjects underwent a functional magnetic resonance imaging examination with the stimulation of both eyes together and each eye separately using a black–and–white checkerboards with two different sizes – 25.8x16.2 (larger field–LF) and 2x2 (small field–SF). All subjects showed different interocular FMRI activity. Larger differences were observed during small field activation. Sighting and sensory eye dominance did not correlate with the activity FMRI. We did not even observe hemispheric laterality after the separate stimulation of the dominant eye when using a larger field or small field activation.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Jan Lestak, Jaroslav Tintera, Pavel Rozsival Ocular Dominance and Fmri Activation in Response to Various Stimuli International Journal of Scientific Research, Vol : 3, Issue : 9 September 2014

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