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PSYCH A LEVEL > BIOPSYCHLOGY > Flashcards

BIOPSYCHLOGY Flashcards

1
Q

localisation theory

A

different areas of the brain are responsible for specific behaviours.

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2
Q

motor area

A

in frontal lobe involved in regulating movement.

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3
Q

somatosensory area

A

parietal lobe that processes sensory info.

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4
Q

visual area

A

occipital lobe send info from left visual field to right visual cortex visa versa.

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5
Q

auditory area

A

temporal lobe. analysis of speech info.

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6
Q

broca area

A

frontal lobe in left. Responsible for speech production.

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7
Q

wernicke area

A

left temporal lobe. Responsible for language comprehension.

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8
Q

2 functions of nervous system

A
  1. process and respond to information to in the environment

2. coordinate the working of different organs and cells

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9
Q

CNS

A

made up of brain and spinal cord.

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10
Q

spinal cord

A

responsible for reflex actions

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11
Q

PNS role

A

transmits messages via neurons to and from nervous system

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12
Q

autonomic nervous system

A

governs vital functions in the body such as breathing

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13
Q

somatic nervous system

A

governs muscle movement and recieves information from sensory receptors.

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14
Q

endocrine system

A

works alongside the NS to control vital functions through hormones. hormones are secreted into the bloodstream and affect any cell in the body that has a receptor

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15
Q

thyroxine is produced by what galnd ?

A

thyroid

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16
Q

pituaitary gland

A

master gland controls the release of hormones from other glands in the body.

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17
Q

fight of flight

A

stressor recieved and activates the pituitary. Sympathetic system now aroused. Adrenaline is released from medulla into blood stream and causes changes in organs. Increase HR + dilation of pupils + reduced saliva production. Then parasympathetic brings it down. Resting state

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18
Q

sensory neuron

A

long dendrites short axons. Transmit messages from CNS to PNS.

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19
Q

relay neuron

A

short dendrites short axons. Connect sensory neurons to motor neurons.

20
Q

motor neuron

A

short dendrites long axons. Connect CNS to effectors such as muscles.

21
Q

lateralisation

A

The idea that the two halves of the brain are functionally different and certain behaviours are controlled by one side of brain.

22
Q

Left hemisphere lateralisation

A

language Broca- frontal wernicke- temporal

23
Q

brain is crosswired

A

right hemisphere controls movement on left side of body and left hemisphere controls movement on right side. And vision left visual field send info to right visual cortex and vice versa.

24
Q

hemisphere connected to left visual field of both eyes

A

left visual field of both eyes connected to right hemisphere

25
Q

hemisphere connected to right visual field of both eyes

A

right visual field of both eyes connected to left

26
Q

split brain definition

A

two hemispheres surgically separated by cutting the connections. Used to treat severe epilepsy.

27
Q

SPERRY split brain procedure

A

studied split brain ps. Image/word projected to RVF processed by LH and sam/diff image/word to LVF processed by right

28
Q

SPERRY FINDINGS

A

Objects shown to RVF can be described but when shown to LVF cant name object but can select matching object behind screen.

29
Q

plasticity

A

Brains tendency to adapt/change as a result to new learning.

30
Q

pruning

A

as we age barely used connections are deleted and used are strengthened.

31
Q

plastcity support study

A

maguire found significantly more volume of grey matter in hippocampus of cab drivers than control group. Linked with spatial and navigation skills.

32
Q

plasticity draganski

A

imaged brains of medical students three months before and after final exams.Changes seen in hippocampus and parietal cortex.

33
Q

functional recoveryy definition

A

following damage brain redistributes or transfers function usually performed by damaged areas to other ones.

34
Q

axonal sprouting

A

growth of new nerve ending which connect with other undamaged cells to form new neuroscience

35
Q

denervation supersentivity

A

axons that do a similar job become aroused to a higher level to conpensate for the oned lost

36
Q

recruitment of homologous areas

A

the opposite side of the brain takes over specific tasks

37
Q

FMRI

A

detects changes in both blood oxygenation and flow that occur due to neural activity in specific brain area. As when a brain area is active more blood goes there.

38
Q

EEG

A

measures electrical activity via electrodes using a skull cap. The scan represents brainwave patterns generated from neurons.

39
Q

ERP

A

what is left when brain activity from an eeg recording filters out. Using statistical technique leaving only responses related to presentation of specific stimulus.

40
Q

Post mortem examinations

A

examined to establish cause of disorder may involve comparison.

41
Q

role of somatic nervous system

A

transmits sensory information from body receptors to brain and brain to effectors to produce movement.

42
Q

inhibitory synaptic transmission

A

stimulation of postsynaptic receptors by inhibitory neurotransmitter result in inhibition of post synaptic membrane. If inhibitory inputs are higher than excitatory they inhibit action potential.

43
Q

FMRI

A

measure changes in blood oxygenation as a measure of neural activity

  • poor temporal resolution
  • good spatial resolution
  • non invasive
44
Q

ERP

A
  • measure electrical activity via electrodes to detect brainwaves triggered by certain events
  • good temporal but poor spatial resolution
45
Q

split brain had … severed

A

corpus callosum

46
Q

role of endocrine system

A

releases hormone from gland into bloodstream that bind to receptors in order to regulate activity of cells

PSYCH A LEVEL (18 decks)

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