A subject (D.B.) who had no experience of visual stimuli in a field defect caused by visual cortex damage but could discriminate them ('blindsight') nevertheless reported visible after-images of the stimuli when they were turned off ('prime-sight'). This was investigated using projected visual stimuli of varying colors, contrasts, shapes and spatial frequencies, and by measuring the properties of the after-images, including their duration, size scaling, color and interocular transfer, comparing the capacity of the blindsight and prime-sight modes. These phenomena offer a unique opportunity to compare conscious and unconscious neural events in response to the same visual events
Although subjective conscious experience and introspection have long been considered unscientific an...
Blindsight is classically defined as residual visual capacity, e.g., to detect and identify visual s...
Blindsight is the rare and paradoxical ability of some human subjects with occipital lobe brain dama...
A subject (D.B.) who had no experience of visual stimuli in a field defect caused by visual cortex d...
Listening to subject's commentaries can be a useful spur to novel scientific departures, as in studi...
The study is of brain activity in a blindsight subject (D.B.), who reports conscious visual afterima...
Some patients with lesions in visual cortex lack conscious visual experience but, when tested, exhib...
Blindsight patients, whose primary visual cortex is lesioned, exhibit preserved ability to discrimin...
Blindsight, the visually evoked voluntary responses of patients with striate cortical destruction th...
Blindsight is the ability of patients with clinically blind field defects, caused by damage to the p...
Some human patients with lesions to their primary visual (striate) cortex (V1) demonstrate residual ...
When the visual (striate) cortex (V1) is damaged in human subjects, cortical blindness results in th...
We show here that, in the absence of a direct geniculostriate input in human subjects, causing loss ...
The neuropsychological phenomenon of blindsight has been taken to suggest that the primary visual co...
At suprathreshold levels, detection and awareness of visual stimuli are typically synonymous in nonc...
Although subjective conscious experience and introspection have long been considered unscientific an...
Blindsight is classically defined as residual visual capacity, e.g., to detect and identify visual s...
Blindsight is the rare and paradoxical ability of some human subjects with occipital lobe brain dama...
A subject (D.B.) who had no experience of visual stimuli in a field defect caused by visual cortex d...
Listening to subject's commentaries can be a useful spur to novel scientific departures, as in studi...
The study is of brain activity in a blindsight subject (D.B.), who reports conscious visual afterima...
Some patients with lesions in visual cortex lack conscious visual experience but, when tested, exhib...
Blindsight patients, whose primary visual cortex is lesioned, exhibit preserved ability to discrimin...
Blindsight, the visually evoked voluntary responses of patients with striate cortical destruction th...
Blindsight is the ability of patients with clinically blind field defects, caused by damage to the p...
Some human patients with lesions to their primary visual (striate) cortex (V1) demonstrate residual ...
When the visual (striate) cortex (V1) is damaged in human subjects, cortical blindness results in th...
We show here that, in the absence of a direct geniculostriate input in human subjects, causing loss ...
The neuropsychological phenomenon of blindsight has been taken to suggest that the primary visual co...
At suprathreshold levels, detection and awareness of visual stimuli are typically synonymous in nonc...
Although subjective conscious experience and introspection have long been considered unscientific an...
Blindsight is classically defined as residual visual capacity, e.g., to detect and identify visual s...
Blindsight is the rare and paradoxical ability of some human subjects with occipital lobe brain dama...