Limbic 2 Flashcards

1
Q

What are the three different manifestations of emotional experience?

A

1) Autonomic (physiological and visceral), 2) Behavioral facial expressions, 3) subjective feelings like love, fear and hate and drives like thirst.

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2
Q

what part of the brain is associated with the emotional reponsivity and expression?

A

Prefrontal cortex, Anterior cingulate and insula, Amygdala

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3
Q

what are the 2 parts associated with the prefrontal cortex?

A

orbitofrontal, vmPFC

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4
Q

what are five areas of emotional response?

A

1) cognitive appraisal, 2) bodily symptoms, 3) action tendencies, 4) expression, 5) feelings.

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5
Q

What is emotional cognitive appraisal?

A

outside evaluation of events and objects and internal perception of physiological condition of the body.

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6
Q

what are emotional bodily symptoms mostly mediated by?

A

autonomic nervous system.

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7
Q

what are feelings?

A

Subjective experience of emotional state once it has occurred, based on active interpretation of changes in the physiological condions of the body.

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8
Q

what type of cortex is the insula?

A

viscero-sensory

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9
Q

what is the insula, viscerocortex involved in?

A

maping internal body states , and emotional arousal/feelings

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10
Q

examples of what the insula is emotionally aware of:

A

gut feelings, smell , how body feels like hungry, and perception of the affective aspec of pain and temperature.

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11
Q

What is the front and back part of insula for?

A

front - perceive subjective interoceptive states, affective aspect of pain, Back - (thermoreceptors) somatosensory input

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12
Q

what integrates bodily states into higher order cognitive and emotional processes?

A

the insula

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13
Q

what are higer order cognitive/emotional processes?

A

experience of pain, anger, fear disgust happyness,

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14
Q

The insula has connections with what brain areas to help intergrate higher order cognitive/emotional processes? (3)

A

Prefrontal cortex, cingulate (ACC) amygdala

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15
Q

what part of insula does internal and external info for pain, temp touch itch and emotional touch?

A

the posterior, its somatosensory stuff

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16
Q

What part of insula looks and perception of subjective interoceptive states like feelings acrosstime?

A

the anterior

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17
Q

what does the anterior insula intergrate with?

A

homeostatic, motivational, emotional and cognitive info from Anterior cingulate and prefrontal cortex.

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18
Q

what part of insula is the integrator?

A

the anterior insula.

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19
Q

what part of insula does novel/unexpected tasks and difficullt perceptual tasks?

A

the anterior insula it can do that because it integrats with lots of areas of the brain.

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20
Q

homeostatic change in response to unexpected/novel tasks require what from the insula?

A

anticipation, a change in adaptive behavior via anticipation

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21
Q

what is an overactive insula assocated with?

A

anxiety disorders and fear conditioning.

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22
Q

what is empathy?

A

ability to feal and understant emotions in ourselves and others, and to feel what you think they would feel

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23
Q

what part of the brain enables us to do empathy (pictue of squashed finger)

A

anterior insula, again the one that does the integration

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24
Q

what can activate empathitically activate our anterior insula?

A

disgusting odarents and observed disgust.

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25
Q

where is the almond shaped amygdala?

A

anterior to the hippocampus in the temporal lobe

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26
Q

what is the amygdala involved in?

A

consolidating memory of cognitive emotion interactions

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27
Q

what perceives and gives attention to positive and negative emotional intensity?

A

amygdala

28
Q

what mediates the effect of the amygdala on the cortex and memory consolidation?

A

basal forebrain mediates ascending projections from amygdala

29
Q

where do the efferent projects of the amygdala go to?

A

visual cortex to shape visual perception

30
Q

what do amygdal descending projectons go through?

A

hypothalamus and brain stem.

31
Q

anxiety, learned and innate fear expression are mediated by what?

A

amygdala:central nucleus

32
Q

what type of visceral responses are mediated by amyddala?

A

increased heart rate, dry mouth, ulcers, respiration, vigilance, urination etc.

33
Q

what will amygdala respond mostly to, fear face on someone or anger, Why?

A

Fear face because of ambiguity, doesn’t know how dangerous the fear could be but is sure about anger.

34
Q

how does amygdala maintain vigilance?

A

activation of basal foregrain nuclei, Ach, to activate cortex. It filters out irrelevant information

35
Q

what area of the brain is assocated with pavlovian conditoning?

A

amygdala..acquisition of conditioned fear

36
Q

what keeps amygdala from overreacting to something scary?

A

other cortical areas, hippocampus, medial prefrontal cortex helps bring things into contex

37
Q

amygdal gets info from what areas so it can find out signifigance of emotional info?

A

Medial PFC, cingulate, insula, hippo, sinsory assocation and limbic cortices

38
Q

after amygdala gets info what does it do?

A

consodidate memory, especially fear then send it back to hippo and Medial PFC.

39
Q

when we have a memory that makes us feel fear again what has happened?

A

amygdal has stimulated hypothalamus and brain stem for learend emotional responses.

40
Q

how does hippocampus effects amygdal when it sees something scary?

A

gives context like its only a movie, or in a cage

41
Q

what mitigates the amydalas respones to something emotional?

A

the medial prefrontal cortex.

42
Q

the two areas that keep the amygdala in check when scared by a snake is?

A

medial prefrontal cortex mediates response and hippocampus that gives context

43
Q

are cues and context processed via the same path?

A

no, there are different paths for context and cues.

44
Q

what is essential for understanding meaning of cues?

A

context processing, hippocampus

45
Q

what are the cue processing areas?

A

amygdala, sensory cortices, posterior insula, parietal and temporail association areas

46
Q

What aore the contex processing areas?

A

ventromedial prefrontal cortex, hippocampus, anterior insula, anterior congulate cortex

47
Q

what is pulvinar nucleus of thalamus a part of?

A

subconcious pathway, blindsight.

48
Q

how are emotial memorys formed?

A

processed in sensory systems, then to hippocampus, to make declaritive memory about emotiona and to amygdala for emotional memory

49
Q

what are memories about emoitons?

A

emotional arrousal forming sematic and episodic memories about it, cognitive representations of emotion

50
Q

how do get to emotional memory?

A

event to sensory system to inplicit memory system, amygdala

51
Q

how to get to memory about emotion?

A

event to sensory system to explicit memory in the medial temporal lobe.

52
Q

what is extention of conditioned fear due to?

A

vmprefrontal cortex inhibiting the amygdala

53
Q

can conditioned fear be eliminated?

A

no, its still there just supressed

54
Q

what is the vmPFC and fear extention importaint for?

A

for adaptation to new situations, so you should be able to switch behaviors.

55
Q

what is emotional perservation?

A

where you can’t change your behaviors, failure in extentions. Maladaptive.

56
Q

what does high NE and Da in response to stress to the PFC and amygdala?

A

Impairs PFC working memory and attention but stimulates amygdala fear condtion leading to anxitey

57
Q

amygdala bias is what?

A

towards habitual motor responding

58
Q

what biases us tword flexible shifting of attention based on context?

A

medial PFC and hippocampus

59
Q

Does the Amygdal have Slow thoughtful regulation or rapid emotional responses?

A

Amygdala = rapid and emotional and PFC = slow and thoughtful

60
Q

what can explain angry emotinal drunks?

A

alcohol knocks out PFC

61
Q

what neurtransmitter enhances amygdal reactivity and specificity?

A

NE

62
Q

what can reduce tendency to anxitedy?

A

propanolol , B adrenergic antagonist. Not scared of emotinal faces

63
Q

What does vmPFC lesion cause?

A

can’t plan ahead, recognize consequences, inhibit amygdala emotions

64
Q

what happens with amydgala lesions?

A

cant link past experiences to stimul with behavioral consequences, cant recognize facial expressions, less fear/anxiety, less aggression, in appropriate sexual behavior.

65
Q

what is tactile agnosia?

A

loss of association cortical input means can recognize objects because they have no emotinal meaning.

66
Q

what does amygdal do with personal space?

A

without one you need less personal space. It governs personal space preference. Has to do with percieved threats