Perception & Action Flashcards
(20 cards)
PRIMARY VISUAL CORTEX
The area of the cortex that receives direct input from the lateral geniculate nuclei (also called striate cortex).
SECONDARY VISUAL CORTEX
Areas of cerebral cortex that receive most of their input from primary visual cortex.
VISUAL ASSOCIATION CORTEX
Areas of cerebral cortex that receive input from areas of secondary visual cortex as well as from secondary cortex of other sensory systems
POSTERIOR PARIETAL CORTEX
An area of association cortex that receives input from the visual, auditory, and somatosensory systems and is involved in the perception of spatial location and guidance of voluntary behavior.
INFEROTEMPORAL CORTEX
The cortex of the inferior temporal lobe, in which is located an area of secondary visual cortex that is involved in object recognition.
BLINDSIGHT
The ability of some patients who are blind as a consequence of cortical damage to unconsciously see some aspects of their visual environments.
VISUAL AGNOSIA
A failure to recognize visual stimuli that is not attributable to sensory, verbal, or intellectual impairment.
PROSOPAGNOSIA
Visual agnosia for faces.
DORSAL STREAM
The group of visual pathways that flows from the primary visual cortex to the dorsal prestriate cortex to the posterior parietal cortex; according to one theory, its function is the control of visually guided behavior.
VENTRAL STREAM
The group of visual pathways that flows from the primary visual cortex to the ventral prestriate cortex to the inferotemporal cortex; according to one theory, its function is conscious visual perception.
ATAXIA
Loss of motor coordination.
APRAXIA
A disorder in which patients have great difficulty performing movements when asked to do so out of context but can readily perform them spontaneously in natural situations.
DORSOLATERAL PREFRONTAL ASSOCIATION CORTEX
The area of the prefrontal association cortex that plays a role in the evaluation of external stimuli and the initiation of complex voluntary motor responses.
AKINETOPSIA
A deficiency in the ability to perceive motion, which often results from damage to the dorsal visual pathway.
CHANGE BLINDNESS
The difficulty perceiving major changes to unattended-to parts of a visual image when the changes are introduced during brief interruptions in the presentation of the image.
ASOMATOGNOSIA
A deficiency in the awareness of parts of one’s own body that is typically produced by damage to the parietal lobe.
CONTRALATERAL NEGLECT
A disturbance of the patient’s ability to respond to visual, auditory, and somatosensory stimuli on the side of the body opposite to a site of brain damage, usually the left side of the body following damage to the right parietal lobe.
ANOSOGNOSIA
The common failure of neuropsychological patients to recognize their own symptoms.
SIMULTANAGNOSIA
A disorder characterized by the inability to attend to more than one thing at a time.
SELECTIVE ATTENTION
The ability to focus on a small subset of the multitude of stimuli that are being received at any one time.
