4 Flashcards

(34 cards)

1
Q

Biological psychology

A

Studies the relationship between the nervous system and behaviour

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2
Q

Phrenology

A

Analyzing skull shape
Thought to reflect brain size and cognitive function
Discredited by the mid- 1800

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3
Q

EEG

A

Electroencephalograph
- measures electrical activity via electrodes on the skull
- excellent at studying when brain activity is changing
- challenging to study small brain region

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4
Q

CT

A

Computed tomography
- x rays to construct three dimensional images

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5
Q

MRI

A

Magnetic resonance imaging
- magnetic fields to indirectly visualize brain structure

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6
Q

fMRI

A

Functional MRI
Uses magnetic fields to visualize brain activity

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7
Q

Positron emission tomography

A

Measures consumption of glucose-like mol files to give a picture of nueral activity

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8
Q

Magnetoencephalohraphy

A

Measures tiny magnetic fields generated by the brain

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9
Q

DBS

A

Deep brain stimulation
- modify brain function through implanted electrodes
- potential treatment for diseases( Parkinson’s, depression )

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10
Q

CT- Computed Temography

A

X- rays to construct 3D images

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11
Q

MRI

A

Magnetic resonance imaging
- magnetic fields to indirectly visualize brain structure

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12
Q

fMRI

A

Functional
- uses magmatic fi lid to visualize brain activity

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13
Q

PET- Positiok emission tomography

A

Measures conscription of glucose like molecules to give a picture of neural activity

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14
Q

MEG- magnetoencephalography

A

Measures tiny magnetic fields generated by the brain

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15
Q

Deep Brain stimulation

A
  • modify brain function through implanted electrodes
  • potential treatment for diseases
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16
Q

TMS- Transcranial magnetic stimulation

A
  • applies strong and quickly changing magnetic fields to the surface of the skull that can either enhance or interrupt brain function
17
Q

Neurons

A

Specialized brain cells for communication with each other
- 86 billion with 160 trillion connection

18
Q

Dendrites

A

Branchlike extension that receive info

19
Q

Axons

A

“Tails” that transmit info

20
Q

Axon terminal

A

Knob at end of axon containing synaptic vesicles filled with neurotransmitters

21
Q

Neurotransmitters

A

Chemical messengers that allow neuron to neuron communication

22
Q

Synapse

A

Space between neurons through which NTs travel

23
Q

Glial Cells

A

Glue cells
- plenty(1:1) with neurons
- support role, involved in functioning

24
Q

Astrocytes

A
  • star shaped
  • increase reliability of neural transmission
  • found in blood brain barrier
25
Oligodendrocytes
- promote new conditions and produce myelin sheath around axons
26
Testing potential
Membrane potential when no stimulation or inhibition - 60 mV
27
Action Potential
Electrochemical impulse travelling down the membrane that results in NT release - requires stimulation to threshold of excitation
28
Stages of Action potential
1- resting 2- depilarization 3- repolarization 4- hyper polarization 5- refractory period
29
Neurotransmitter
- lock and key method - NT binds with receptor site of next neuron
30
Electrical communication
Neuron with neuron
31
Chemical communication
Neuron between neuron
32
Re- uptake
Process by which neurons go back into the axon terminal
33
Acetylcholine
- arousal, attention, sleep and memory - released to trigger muscle movement
34
Monoamines
Norepinephrine, dopamine, serotonin