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Erstellt von andreaarose
vor mehr als 10 Jahre
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Frage | Antworten |
Subdivisions of the parietal lobes | Postcentral gyrus, superior parietal lobule, parietal operculum, supramarginal gyrus and angular gyrus. |
Inferior parietal lobule | Supramarginal gyrus and angular gyrus. |
Anterior zones | Process somatic sensations and perceptions - somatosensory cortex. |
Posterior zones | Integrate information from vision with somatosensory information for movement - posterior parietal cortex. |
Object recognition | Spatial information is used as viewer centered object identification - posterior parietal cortex |
Guidance of movement | Spatial information is sensitive to eye movements - posterior parietal cortex. |
Cognitive spatial map | Route knowledge, unconscious knowledge of how to reach a destination |
Symptoms that do not fit with the visuomotor view of the parietal lobe | Difficulties with arithmetic, certain aspects of language, and movement sequences |
Acalculia | Inability to do arithmetic in parietal lobe patients, might result from the spatial properties of addition and subtraction |
Language | Words have spatial organization - tap vs. pat. |
Movement sequencing | Individual elements of the movement have a spatial organization |
Lesions to the postcentral gyrus | Abnormally high sensory thresholds, impaired position sense, deficits in stereognosis, or tactile perception |
Astereognosis | Inability to recognize an object by touch |
Simultaneous extinction | Two stimuli are applied simultaneously to opposite sides of the body, failure to report a stimulus on one side is referred to as extinction |
Contralateral neglect | Neglect for visual, auditory, and somesthetic stimulation on one side of the body or space |
Recovering from contralateral neglect | Patients go through allesthesia then simultaneous extinction. |
Allesthesia | Respond to the neglected stimuli as if they were on the other side of the body or space. |
Lesions and contralateral neglect | Lesion most often in the right inferior parietal lobe - right intraparietal sulcus and the right angular gyrus |
Object recognition and lobe damage | After right parietal lobe lesions patients are poor at recognizing objects in unfamiliar views |
Apraxia | Movement disorder in which the loss of movement is not caused by weakness, inability to move, abnormal muscle tone, intellectual deterioration, poor comprehension, or other disorders of movement |
Ideomotor apraxia | Cannot copy serial movements, associated with left parietal lesions |
Constructional apraxia | Cannot copy pictures, build puzzles, or copy a series of facial movements, associated with right and left parietal lesions |
Deficits in drawing | Appear after damage to the right parietal lobe |
Spatial attention | Function of the parietal lobe to selectively attend to different stimuli |
Disengagement | Shifting attention from one stimulus to the next |
Mental rotation | Requires mental imaging of the stimulus and manipulation of the image. |
Spatial cognition and left hemisphere deficit | Result from the inability to generate the image |
Spatial cognition and right hemisphere deficit | Result from the inability to manipulate the image |
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