Neurophys. of Higher Cognition Flashcards

(43 cards)

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?

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
Posterior sector of superior temporal sulcus
Provides visual input
26
Posterior Mirror Neuron System
Identifies motor action
27
Anterior Mirror Neuron System
Identifies goal of the action
28
The circuit for imitating others interacts with limbic structures via?
Insula
29
What is the sequence of the areas of the brain for perceiving prosody?
Primary auditory cortex Right posterior superior temporal sulcus Frontal cortex
30
For perception of prosody, what does the primary auditory cortex do?
Basics of sound processing, including identifying pitch, loudness, etc.
31
For perception of prosody, what does the right posterior superior temporal sulcus do?
Begins to piece together the MEANING of the identified sounds
32
For perception of prosody, what does the frontal cortex do?
Determines the judgement of the emotional stimulus
33
What is theory of mind?
The ability to understand the mental states (beliefs, desires, intentions) of others and to appreciate how they differ from our own
34
What are the required areas for theory of mind?
Amygdala, medial temporal lobes and orbitofrontal areas
35
What is required for theory of mind to exist?
Emotion comprehension
36
Decisions in which the risks are explicit and known relies on what system?
Stimulus encoding system
37
Components to the stimulus encoding system?
Orbitofrontal cortex Ventromedial prefrontal cortex Striatum
38
What does the stimulus encoding system do?
Evaluates the evidence available in making the decision
39
Decisions in which the risks are unknown relies on which systems?
Expected reward system and then the action selection system
40
What does the expected reward system do?
Predicts expected rewards
41
Components of the expected reward system?
Basal ganglia Amygdala Insular cortex Intraparietal cortex
42
What does the action selection system do?
Learns and encodes subjective value of results and is involved in error detection
43
Component of the action selection system?
Anterior cingulate cortex