. Using a modified version of the oculomotor paradigm (see Theeuwes, Kramer, Hahn, & Irwin, 1998) we show that when the eyes moved to the target object, subsequent saccades were inhibited from moving to a location at which a new object had previously appeared (inhibitionof -return; IOR). Whether

the motor-based component of IOR is present when the response is oculomotor, and the attention-based component of IOR is present when the response is manual. These 2 distinct components should be considered and studied separately, as well as in relation to each other, if a comprehensive theory of IOR

The present study shows that inhibition-of-return reduces competition for selection within the oculomotor system. We examined the e#ect of a distractor when it was presented at an inhibited location (IOR). The results show that due to IOR distractors cause less interference. This was evident in all

Inhibition of return (IOR)-the automatic bias against returning attention or gaze to recently visited locations-is thought to have both collicular and cortical components and has been associated with the oculomotor system. Recently, distinct IOR mechanisms have been revealed that may have

Previous studies suggested that in order to perceive a stable image of the visual world despite constant eye movements, an efference copy of the oculomotor command is used to remap the representation of the environment in the brain. In two experiments, an inhibitory attentional component

-onset-asynchrony (SOA)>250 msec, was accompanied by increased activation in brain areas involved in oculomotor programming, such as the right medial frontal gyrus (supplementary eye field; SEF) and the right inferior precentral sulcus (frontal eye field; FEF), supporting the oculomotor bias theory of IOR. Pre

There is growing evidence for cognitive impairments in Parkinson's disease (PD), including in the orienting of attention and inhibition of return (IOR). IOR refers to the slowing of a response to a target stimulus presented in the same location as a previous stimulus. While some researchers

participants were faster to respond to spider targets than to butterflies. Furthermore, eye-tracking data showed a robust IOR effect independent of stimulus category. These results offer a more comprehensive assessment of the motor and oculomotor factors involved in the IOR effect.

at the same location as the Wrst visual event. The results are consistent with the notion that IOR is composed of both atten-tional and oculomotor components, and challenge the view that covert orienting paradigms engage the attentional component in isolation.

-menting an oculo-motor control loop, and some off-the-shelf electronics. The custom integrated circuits communicate with each other primarily by non-arbitrated address-event buses. The system implements the behav-iors of saliency-based saccadic exploration, and smooth pursuit of light spots. The duration