Behavior, Cortical Function and Dementia Flashcards Preview

► Med - Pathology > Behavior, Cortical Function and Dementia > Flashcards

Flashcards in Behavior, Cortical Function and Dementia Deck (14):
1

Short-Term Memory

Ability to recall information retained for several minutes

2

Long-Term Memory

Memory of past events months to years ago

3

What structures does memory depend upon?

- Temporal Lobe
- Thalamus

4

What is the memory pathway?

Hippocampus -> Fornix -> Mammillary Body -> Anterior Thalamic Nucleus

5

How does amnesia occur in Wernicke-Korsakoff syndrome?

Bilateral lesions occur to the thalamus and mammillary bodies

6

How can anoxia or HSV encephalitic cause amnesia?

They can lead to bilateral hippocampal lesions

7

Apraxia

Inability to conceptualize and perform a skilled, learned motor act on demand.

8

Agnosia

Impaired recognition of stimuli due to lesions in the sensory association cortex

9

Prefrontal/Frontal Lobe Syndrome

Listless, apathetic with poor hygiene, judgement and sexual behavior.

- Paratonia
- Frontal Lobe Release

10

Paratonia (Gegenhalten)

Increased limb resistance felt with more rapid movements

11

Frontal Lobe Release Signs

Snouting and rooting reflex are returned. Palmar and plantar grasp may be present.

12

What are some of the syndromes of the temporal lobes?

- Amnesia with bilateral hippocampal lesions
- Deafness
- Kluver-Bucy

13

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.

14

What should be suspected in a younger patient with dementia?

HIV

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