 From cognitive behavioral perspective, obsessive-compulsive disorder OCD has been associated with impairments in stop-signal inhibition, a measure of motor response suppression Morein-Zamir, Fineberg, Robbins, Sahakian, 2010. Another study has related OCD to an attention bias shifting towards the right hemifield in a well-established visual attention task Maril, Hermesh, Gross-Isseroff, Tomer, 2007. Furthermore this shift of attention had been reported to be positively correlated with OCD symptoms as measured by the Y-BOCS e.g. less Y-BOCS score correlated with less shifting of attention. 