Early head movements elicited by visual stimuli or collicular electrical stimulation in the cat

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Early head movements elicited by visual stimuli or collicular electrical stimulation in the cat

During the course of previous recordings of visually-triggered gaze shifts in the head-unrestrained cat, we occasionally observed small head movements which preceded the initiation of the saccadic eye/head gaze shift toward a visual target. These early head movements (EHMs) were directed toward the target and occurred with a probability varying between animals from 0.4% to 16.4% (mean=5.2%, n=1...

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Movements resembling orientation or avoidance elicited by electrical stimulation of the superior colliculus in rats.

Some studies have reported that stimulation of the superior colliculus in rats produces orienting responses, as it does in a number of species. However, other studies have reported movements resembling avoidance and escape, which are not characteristic of collicular stimulation in other mammals. This apparent discrepancy was investigated by systematically recording the effects on head and body ...

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Eye movements evoked by collicular stimulation in the alert monkey.

Electrical stimulation of the superior colliculi of alert, behaving monkeys evoked all-or-nothing saccades whose amplitude and direction were independent of stimulus parametersand depth within the colliculus. They were also independent of initial eye position and werethus not goal-directed. Across the colliculus, the saccades were small (1”) rostrally, large (50”)caudally with u...

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Neural responses elicited by electrical stimulation of the retina.

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ژورنال

عنوان ژورنال: Vision Research

سال: 2001

ISSN: 0042-6989

DOI: 10.1016/s0042-6989(01)00224-3