Neurophys. of Higher Cognition Flashcards

1
Q

Cognition requires extensive interactions between ______ cells of ALL association areas of the neocortex

A

Pyramidal

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2
Q

What are the functional components of cognition?

A
Language
Social cognition
Decision making
Executive functioning
Memory
Visuospatial perception
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3
Q

Main steps to speaking?

A

Language conceptual system
Language mediational system
Language implementation system
Spoken language

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4
Q

What step in the process to speaking, involves Broca’s and Wernicke’s areas?

A

Language implementation system

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5
Q

What step in the process to speaking, involves the concepts that underly our language?

A

Language conceptual system

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6
Q

Babies less than 6 months old are known as

A

Language universalists

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7
Q

Babies less than 6 months old recognize?

A

ALL sounds that might be language as distinct sounds

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8
Q

At what age to babies start to recognize the specific language sounds of their native language?

A

6-9 months

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9
Q

Babies that are between 6-9 months old do what?

A

Drop the use of phenomes (sounds) that do NOT occur in their native language

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10
Q

At what age do babies completely drop all use of unneeded phenomes and turn babbling into spoken language?

A

Around 1 year old

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11
Q

1 year old babies do what?

A

Drop unneeded phenomes completely and begin to turn babbling into true spoken language

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12
Q

A 2nd language learning during language acquisition phase activates what?

A

The SAME pathway used to learn the 1st language

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13
Q

A 2nd language learning after language acquisition phase activates what?

A

An ADJACENT region of Broca’s area instead

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14
Q

What are the components to social cognition?

A
Emotion comprehension (recognition) AND
Theory of mind
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15
Q

The same circuits that produce our emotion are used to RECOGNIZE emotion in others

A

Mirror Neuron System

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16
Q

Step 1 of emotion comprehension (recognition)

A

Perception of facial expressions requires that we identify faces as something special

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17
Q

What areas of the brain are involved in step 1 of emotion comprehension, such as identifying faces as something special?

A

Superior temporal sulcus and Fusiform gyrus (face area)

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18
Q

Step 2 of emotion comprehension (recognition)

A

Bring in the emotional component

19
Q

What areas of the brain are involved in step 2 of emotion comprehension, such as bringing in the emotional component?

A

Amygdala, anterior cingulate cortex, prefrontal cortex

20
Q

What facial details cue us as to what emotion we are seeing in another person, and in what order?

A
  1. Eyes
  2. Nose
  3. Mouth
21
Q

In order to recognize emotion in others, we methodically scan the “triangle” of facial features. What controls that gaze?

A

Amygdala

22
Q

Damage to the amygdala means what for emotion comprehension (recognition)

A

Person will spend very little time looking at the eyes of another and does NOT methodically scan their face

23
Q

What is the sequence for imitation of other people’s motions that is crucial to social cognitive skills?

A

Visual input
Identify motor actions
Identify goal of the action

24
Q

What areas in the brain are used for the sequence of imitation of other people’s motions?

A

Posterior sector of superior temporal sulcus
Posterior Mirror Neuron System
Anterior Mirror Neuron System

25
Q

Posterior sector of superior temporal sulcus

A

Provides visual input

26
Q

Posterior Mirror Neuron System

A

Identifies motor action

27
Q

Anterior Mirror Neuron System

A

Identifies goal of the action

28
Q

The circuit for imitating others interacts with limbic structures via?

A

Insula

29
Q

What is the sequence of the areas of the brain for perceiving prosody?

A

Primary auditory cortex
Right posterior superior temporal sulcus
Frontal cortex

30
Q

For perception of prosody, what does the primary auditory cortex do?

A

Basics of sound processing, including identifying pitch, loudness, etc.

31
Q

For perception of prosody, what does the right posterior superior temporal sulcus do?

A

Begins to piece together the MEANING of the identified sounds

32
Q

For perception of prosody, what does the frontal cortex do?

A

Determines the judgement of the emotional stimulus

33
Q

What is theory of mind?

A

The ability to understand the mental states (beliefs, desires, intentions) of others and to appreciate how they differ from our own

34
Q

What are the required areas for theory of mind?

A

Amygdala, medial temporal lobes and orbitofrontal areas

35
Q

What is required for theory of mind to exist?

A

Emotion comprehension

36
Q

Decisions in which the risks are explicit and known relies on what system?

A

Stimulus encoding system

37
Q

Components to the stimulus encoding system?

A

Orbitofrontal cortex
Ventromedial prefrontal cortex
Striatum

38
Q

What does the stimulus encoding system do?

A

Evaluates the evidence available in making the decision

39
Q

Decisions in which the risks are unknown relies on which systems?

A

Expected reward system and then the action selection system

40
Q

What does the expected reward system do?

A

Predicts expected rewards

41
Q

Components of the expected reward system?

A

Basal ganglia
Amygdala
Insular cortex
Intraparietal cortex

42
Q

What does the action selection system do?

A

Learns and encodes subjective value of results and is involved in error detection

43
Q

Component of the action selection system?

A

Anterior cingulate cortex