Muscle, skin eye, heart and blood pressure and mental activity, introduction to neuromodulation PP Flashcards

(64 cards)

1
Q

How are measures of muscle activity in behavioral studies obtained?

A

EMG recordings on skin surface

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2
Q

What is consistent activity in the corrugator muscle found in the association with?

A

Unpleasant or negative stimuli

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3
Q

What is increased activity in the zygomatic muscle found in the association with?

A

Pleasant or positive stimuli

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4
Q

What is increased activity in the labii muscle found in the association with?

A

Disgust

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5
Q

Who are more facially reactive to affect-laden stimuli, men or women?

A

Women

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6
Q

What is used to measure the increase in skin conductance?

A

Galvanometer

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7
Q

What is the responses in skin indicators of?

A

Nervous system excitation

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8
Q

Directional fractionation refers to

A

When one physiological measure increases while another decreases

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9
Q

What is skin conduction also known as?

A

Electrodermal activity (EDA)

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10
Q

What are high levels of electrodermal activity associated with?

A

Successful learning, increased alertness and effort when individuals are involved in the acquisition of novel materials

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11
Q

Relation between skin conductance response and familiar faces

A

Larger SCRs occur to familiar faces compared with unfamiliar ones or in people who have brain damage that prevents them from recognizing faces

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12
Q

What causes pupils to dilate

A

Strong emotional stimulus
Will persist despite bright lights

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13
Q

Modern technique for pupil-measuring

A

Video-based pupilometer

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14
Q

What happens to pupil size in relation to fatigue

A

Decreases with fatigue

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15
Q

Pupil size and pain

A

Increases with increasing pain

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16
Q

Pupil size and short term memory tasks

A

Diameter increases as a function of number of items to be retrieved

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17
Q

Pupil size and long term memory tasks

A

Greater pupillary response than short term memory

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18
Q

Effort and pupil size

A

More effort = larger pupils

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19
Q

What is the process of measuring eye movements in different environmental contexts called?

A

Electrooculography (EOG)

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20
Q

What does EOG measure?

A

Changes in electrical potential that occurs in eye movement

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21
Q

What controls eye movements

A

Cortical and subcortical systems in conjunction with cranial nerves and eye muscles

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22
Q

Cerebral areas involved in eye fixation

A

Occipital and frontal cortices

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23
Q

4 types of eye movement

A

Saccadic movement
Smooth pursuit
Smooth compensatory
Nystagmoid

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24
Q

What is saccadic movement

A

Movements of eye from one fixation point to the next
Movement occurs quickly (10% of time spent on movement, 90% on fixation)

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25
In eye movements, smooth pursuit refers to
The eye movement that occurs when a moving object is fixated and followed by the eye
26
In eye movements, smooth compensatory refers to
Movement to correct for body or head tilt to maintain an upright view of the visual field
27
What kind of activity is smooth compensatory eye movement?
Automatic/non voluntary activity
28
In eye movements, nystagmoid refers to
Oscillations of the eye Slow horizon sweeps and quick returns to original eye position
29
What kind of activity is nystagmoid eye movement?
Involuntary
30
3 causes of nystagmoid movements
Eye defects or visual field prevent adequate fixation Vestibular or balance system of inner ear is impaired Impairment of visual or vestibular pathways in the CNS
31
Which way does the eye move for verbal analytical problems?
Right
32
Which way does the eye move for spatial analytical problems?
Left
33
Can eye movements be a cause of reading problems? ex dyslexia
More likely that it is a reflection of reading problems, not a cause
34
Relation between eye blinks and cognitive demand
Increase in eye blinks with increase in cognitive demand
35
What is long closure duration of blinks related to?
Lowered alertness and fatigue
36
When are blinks inhibited?
During reading of text and performance of visual tasks
37
What does increased blink frequency reflect?
Negative mood states (nervousness and stress)
38
What is startle eye blinks modified by?
Cognitive and emotional factors
39
What is startle eye blink magnitude a reliable measure of?
Allocation of attention resources
40
Directional fractionation refers to
When one physiological measure increases while another decreases
41
The cardiac somatic concept refers to
a cardiac response facilitating a behavioral response
42
Reductions in somatic and cardiac activity are viewed as biological manifestations of changes in
Perception
43
PNS effect on heart rate
Decreases it
44
SNS effect on heart rate
Increases it
45
What is recovery?
Time just after task has been completed and return to baseline
46
What are post-task levels important for information about?
How long it takes the cardiovascular system to recover to pre-task levels
47
What are greater magnitudes of heart rate slowing related to?
Faster reaction times (still controversial)
48
What is deceleration of heart rate related to?
Stimulus intake and orienting response
49
What is acceleration of heart rate related to?
Stimulus rejection and the defensive response
50
Which personality type show greater cardiovascular reactivity?
Type A
51
Which individuals have higher cardiovascular reactivity?
High-hostile individuals
52
Do information-processing load and problem-solving difficulty affect blood pressure?
Yes
53
The parasympathetic nervous system
Decreases blood flow
54
Variables that play a role in blood pressure
Personality Task Context Environmental Sex Personality type Family history
55
What does blood and pulse volume change with the introduction of?
New or unexpected stimuli
56
What is neuromodulation?
The alteration of nerve activity through targeted delivery of a stimulus to specific neurological sites in body
57
Which neuromodulation technique is used in movement disorders?
Deep Brain Stimulation
58
What can neuromodulation be used for?
Treatment for pain, movement disorders, restore normal function of bowel and bladder control, Parkinson's and tremor control and much more
59
What can be stimulated during neuromodilation
Brain Spinal cord Peripheral nerves
60
Intractable epilepsy has been treated with what
Deep brain stimulation, cerebellar cortex stimulation and vagal nerve stimulation
61
Which stimulation has mood elevating effect and can treat depression?
Vagal nerve stimulation
62
What is deep brain stimulation been explored to treat?
Severe intractable depression OCD Alzheimers Obesity Addiction Chronic pain
63
What did the application of functional electrical stimulation had its origin in?
Management of spinal injury and post-stroke
64
Example of functional electrical stimulation (FES)
Cochlear implants