Further Revision Flashcards

1
Q

tracts

A

bundles of axons in the CNS (white matter)

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2
Q

planes of view

A

sagittal - left
cornonal - right
horizontal

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3
Q

speed of propogation of the action potential

A
  • Speed of propagation of the action potential is determined by:
    • Diameter of axon (bigger=faster).
    • Presence of absence of a myelin sheath.
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4
Q

fMRI

A
  • Neural firing changes the oxygenated blood flow to the active brain area (the haemodynamic response).
    • Deoxyhaemoglobin is a paramagnetic (attracts to magnetic field) whereas oxyhaemoglobin is diamagnetic (repels magnetic field).
    • This differential magnetic susceptibility allows us to monitor changes in blood oxygenation levels that are triggered by neural activity.
    • fMRI reveals patches of cortex in the fusiform gyrus that show increased BOLD response to faces.
    • This area has become known as the fusiform face area (FFA).
    • fMRI has shows that two other brain regions are activated by viewing faces.
    • The Occipital face area responds to facial features.
    • The superior temporal sulcus (STS) is activated to actual and implied facial motion.
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5
Q
  • Structural encoding/perception of facial features=
A

inferior occipital gyri.

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6
Q
  • Perception of unique identity
A

= lateral fusiform gyrus

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7
Q
  • Peripheral aspects of expression analysis, eye gaze, perception and speech
A

= superior temporal sulcus.

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8
Q

rey complex figure

A
  • helps with memory and identifying executive functioning.

client is asked to replicate a drawing

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9
Q

anterograd amnesia

A

loss of information following the onset of amnesia

Unable to store or retain any new memories of events or episodes.

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10
Q

serial position effect

A

U-shaped curve

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11
Q

Medio Temporal Lobes and memory

A

MTL structures involved in the declarative memory system

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12
Q

Fusiform Face Area

A

patches of cortex in the fusiform gyrus that show increased BOLD response to faces

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