Flashcards in Behavior, Cortical Function and Dementia Deck (14)
Ability to recall information retained for several minutes
Memory of past events months to years ago
What structures does memory depend upon?
- Temporal Lobe
What is the memory pathway?
Hippocampus -> Fornix -> Mammillary Body -> Anterior Thalamic Nucleus
How does amnesia occur in Wernicke-Korsakoff syndrome?
Bilateral lesions occur to the thalamus and mammillary bodies
How can anoxia or HSV encephalitic cause amnesia?
They can lead to bilateral hippocampal lesions
Inability to conceptualize and perform a skilled, learned motor act on demand.
Impaired recognition of stimuli due to lesions in the sensory association cortex
Prefrontal/Frontal Lobe Syndrome
Listless, apathetic with poor hygiene, judgement and sexual behavior.
- Frontal Lobe Release
Increased limb resistance felt with more rapid movements
Frontal Lobe Release Signs
Snouting and rooting reflex are returned. Palmar and plantar grasp may be present.
What are some of the syndromes of the temporal lobes?
- Amnesia with bilateral hippocampal lesions
What do lesions of the non dominant parietal lobe cause?
Impairment of the relationship of the body and its surroundings with the most extreme case being hemispatial neglect.