Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

YEAR 2 Cognition > Organisation of Concepts > Flashcards

Organisation of Concepts Flashcards

1
Q

What are the 2 cognitive models?

A

1) Hierarchical Network model

2) Spreading activation model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What theory focuses on the role of context?

A

Situated Simulation Theory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Name a neurocognitive model?

A

The hub and spokes model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Semantic memory is the store of…?

A

Knowledge about the world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Knowledge about the world is known as…?

A

Semantic memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What type of memory contains concepts?

a. Episodic
b. Phonetic
c. Semantic

A

c. Semantic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Define concepts

A

Mental representations and the fundamental units of thought

e.g., concept of bird, animal etc.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Mental representations and the fundamental units of thought

e.g., concept of bird, animal etc.

What is this known as…?

A

Concepts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How can semantic memory concepts be organised?

List 2 ways

A

1) Hierarchical Network Model

2) Spreading activation model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does the Hierarchical Network model propose?

List 3 points

A

1) Semantic memory is organised into a series of hierarchical networks

2) Major concepts are represented as nodes

(e.g., animal; bird; canary)

3) Properties/features are associated with
each concept

(e.g., has wings; is yellow)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

According to this model, we can decide very rapidly that the sentence, “A canary is yellow,” is true because the concept (i.e., canary) and the property (i.e., is yellow) are stored at the same level of the hierarchy.

What model does this apply to?

A

Hierarchical Network model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

According to the Hierarchical Network model, we can decide very rapidly that the sentence, “A canary is yellow,” is true

How come?

A

Because the concept (i.e., canary) and the property (i.e., is yellow) are stored at the same level of the hierarchy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

According to this model, the sentence “A canary can fly,” should take longer because the concept and property are separated by one level in the hierarchy

What model does this apply to?

A

Hierarchical Network model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

According to the Hierarchical Network model, the sentence “A canary can fly,” should take longer to decide whether it is true or false

How come?

A

Because the concept and property are separated by one level in the hierarchy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The sentence, “A canary has skin,” should take even longer to decide whether it is true or false

How come?

A

Because there are two levels separating the concept and property.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

According to the Hierarchical Network model, which sentence will Ps be more likely to decide very rapidly that it is true?

a. “A canary is yellow”
b. “A canary can fly”
c. “A canary has skin”

A

a. “A canary is yellow”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

According to the Hierarchical Network model, which sentence will Ps be more likely to decide is true the slowest?

a. “A canary is yellow”
b. “A canary can fly”
c. “A canary has skin”

A

c. “A canary has skin”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Define cognitive economy

A

When properties are stored higher up to minimise redundancy/repetition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

When properties are stored higher up to minimise redundancy/repetition

This is known as…?

A

Cognitive economy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Why is the property “can fly” stored with the bird concept rather than with the canary concept?

After all, one property of canaries is that they can fly.

A

Because it would waste space in semantic memory to have info about being able to fly stored with every bird name

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

If those properties possessed by nearly all birds (e.g., can fly; has wings) are stored only at the bird node or concept, this satisfies the notion of ________?

A

Cognitive economy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Property info is stored as high up the hierarchy as possible

Why?

A

To minimise the amount of information needing to be stored in semantic memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Property info is stored as _______ in the hierarchy

a. High up as possible
b. Low as possible

A

a. High up as possible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How do we minimise the amount of information needing to be stored in semantic memory?

A

Storing property info as high up the hierarchy as possible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Describe the sentence verification task

List 2 points

A
  1. Ps were told to decide as quickly as possible whether sentences are true or false

e.g. True or False?
- A canary can sing
- A canary can fly
- A canary has skin
- A canary is a fish

  1. Their response times were recorded
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Describe the results of the sentence verification task

A

1) Ps had higher response times (took longer) when they had to decide whether properties of canaries are T or F

e.g. Can sing, can fly, has skin

2) Ps had lower response times (quicker) when they had to decide whether categories of canaries are T or F

e.g. Is a canary, is a bird, is an animal

3) The greater the distance between the target word and its properties/ categories, the longer the response times

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What do people often do in sentence verification tasks?

A

Unless information is directly linked/stored with a concept in semantic memory, we infer the answer from properties of higher nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Unless information is directly linked/stored with a concept in semantic memory, we infer the answer from properties of higher nodes

This is because making more inferences _______?

A

Slows down verification

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What happens when we make more inferences?

A

Verification would be slower

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What are 2 problems with the Hierarchical Network Model?

A

1) It does not account for familiarity

Ps are slow to verify sentences such as, “A canary has skin,” because it is very unfamiliar rather than because of the large hierarchical distance between the concept and its property

When this is controlled for, it reduces the hierarchical distance effect

2) Does not consider typicality effect

Verification is faster for more representative member categories, independent of
hierarchical/semantic distance

e.g. A penguin is a bird vs A canary is a bird

Ps respond faster to canary because it is a more typical representative of a bird compared to penguin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Ps respond faster to canary because it is a more typical representative of a bird compared to penguin

This is an example of…?

A

Typicality effect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Describe the typicality effect

A

Verification times are faster for more typical or representative member categories than atypical ones, independent of
hierarchical/semantic distance

e.g. A penguin is a bird vs A canary is a bird

The first statement takes longer because canaries are much more typical or representative of the bird category than penguins.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Verification times are faster for more typical or representative member categories than atypical ones, independent of
hierarchical/semantic distance

This is known as…?

A

Typicality effect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Ps are slow to verify sentences such as, “A canary has skin,” because it is very unfamiliar rather than because of the large hierarchical distance between the concept and its property

When this is controlled for, what happens to the hierarchical distance effect?

A

The hierarchical distance effect reduces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Describe the Spreading Activation Model

List 4 points

A

Semantic memory is organised by semantic relatedness/distance

The length of links indicates the degree of semantic relatedness

Activity at one node causes activation at other nodes via links

Spreading activation decreases as it gets further away from the original point of activation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Semantic memory is organised by semantic relatedness/distance

The length of links indicates the degree of semantic relatedness

Activity at one node causes activation at other nodes via links

Spreading activation decreases as it gets further away from the original point of activation

Which model does this apply to?

A

Spreading Activation Model

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

According to the Spreading Activation Model, activity at one node causes activation at _______ via links

A

Other nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Spreading activation decreases as it gets further away from …?

A

The original point of activation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

According to Spreading Activation Model, semantic memory is organised by ______?

A

Semantic relatedness/distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

According to Spreading Activation Model, the length of links indicates _____?

A

The degree of semantic relatedness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

According to spreading activation theory, the appropriate node in semantic memory is activated when ______?

A

When we see, hear, or think about a concept.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Activation then spreads rapidly to other concepts, with greater activation for concepts ________________ than those ___________.

A

a. Closely related semantically

b. Weakly related

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

According to the Spreading Activation Model, which sentence will have strong activation?

a. A PENGUIN is a bird
b. A CANARY is a bird

A

b. A CANARY is a bird

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

According to the Spreading Activation Model, which sentence will have slow activation?

a. A PENGUIN is a bird
b. A CANARY is a bird

A

a. A PENGUIN is a bird

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

According to the Spreading Activation Model, the sentence “A PENGUIN is a bird” will have slower activation than the sentence “A CANARY is a bird”

How come? List 2 reasons

A

Penguin is an atypical bird and penguin and bird are weakly related

Canary is a typical bird and canary and bird are closely related semantically

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

What are Semantic Priming tasks?

A

When presenting one stimulus that is semantically related makes subsequent processing more efficient (e.g., faster)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

When presenting one stimulus that is semantically related makes subsequent processing more efficient (e.g., faster)

This is known as…?

A

Semantic Priming tasks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Describe how Semantic Priming tasks are conducted

List 2 points

A

1) Ps are presented with a prime word

e.g. Bird

2) Ps are then presented with a target word and are told to make a decision

e.g. Eagle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Describe the results of Semantic Priming tasks

A

Decision/response related to the target word would be made faster if the prime word is semantically related

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

If Ps are presented with the prime word RED, which target word would induce more activation spread?

a. Rose
b. Butter
c. Flower
d. Feet

A

a. Rose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

If the prime word is RED, which target word would induce less activation spread?

a. Rose
c. Flower

A

c. Flower

52
Q

If the prime word is RED, why does the target word ROSE induce more activation spread?

A

Because of the semantic links between red and rose and the distance between nodes are short

53
Q

If the prime word is RED, why does the target word FLOWER induce less activation spread?

A

Because although there are semantic links between red and flower, there is a lengthier link/longer distance between the nodes via an extra node

54
Q

More activation spread =

a. Response times are faster

b. Response times are slower

A

a. Response times are faster

55
Q

Less activation spread =

a. Response times are faster

b. Response times are slower

A

b. Response times are slower

56
Q

What 2 things determine the strength and the speed of activation spread from one concept to the other?

A

1) Semantic links
2) Semantic relatedness/distance

57
Q

Semantic links and relatedness/distance determines the …?

A

Strength and the speed of activation spread from one concept to the other

58
Q

Describe the Deese–Roediger–McDermott (DRM) Paradigm

List 3 points

A

1) An initial word (e.g., doctor) was selected by the researchers (the Ps don’t know this) and then several words closely associated with it (e.g., nurse; sick; hospital; patient) were selected.

2) Ps were presented with words closely associated with the initial word (e.g., nurse; sick; hospital; patient) for learning

3) Ps went through a recognition memory test

59
Q

The Deese–Roediger–McDermott (DRM) Paradigm involved:

1) An initial word (e.g., doctor) was selected by the researchers (the Ps don’t know this) and then several words closely associated with it (e.g., nurse; sick; hospital; patient) were selected.

2) Ps were presented with words closely associated with the initial word (e.g., nurse; sick; hospital; patient) for learning

3) Ps went through a recognition memory test

Describe the results

A

When the initial word (e.g., doctor) was presented on the recognition test, it was frequently falsely recognised.

This occurred because it was highly activated due to its close semantic relationship with all the list words.

60
Q

When the initial word (e.g., doctor) in the Deese–Roediger–McDermott (DRM) Paradigm was presented on the recognition test, it was frequently falsely recognised

Why did this occur?

A

Because the word (e.g. doctor) was highly activated due to its close semantic relationship with all the list words (e.g., nurse; sick; hospital; patient)

61
Q

Activation spreads from all the presented words to ….?

A

The related word(s)

62
Q

Which model is more flexible than the other?

a. Spreading Activation Model

b. Hierarchical Network Model

A

a. Spreading Activation Model

63
Q

The spreading activation model is more flexible than the hierarchical network model

What are the pros of flexibility?

A

The spreading activation model can account for more empirical findings

64
Q

The spreading activation model is more flexible than the hierarchical network model

What are the cons of flexibility?

List 2 cons

A

1) The flexibility also reduces the specificity of the model’s predictions

2) More difficult to test

65
Q

What are the 3 limitations of the Spreading Activation Model?

A

1) Assumes that each concept in semantic memory is represented by a single node (oversimplified)

The model fails to account that info about most concepts is distributed in various brain regions rather than all being represented in a single node

2) Assumes each concept has a fixed mental representation

Situation/context in which we encounter concepts changes the way we
process them

Do different people have similar representations of any given concept?

Our processing of any given concept is flexible

e.g. Piano can be viewed as heavy and musical (flexible)

a. Fred found it difficult to lift the piano
b. Fred enjoyed playing the piano

3) No consensus on the most appropriate way to measure semantic distance

66
Q

Describe the 3 principles of Situated Simulation Theory

A

1) Concepts are processed in different settings

2) Their processing is influenced by the current context/setting

3) Concepts incorporate perceptual properties and motor- or action- related properties

67
Q

1) Concepts are processed in different settings

2) Their processing is influenced by the current context/setting

3) Concepts incorporate perceptual properties and motor- or action- related properties

Which theory does this apply to?

A

Situated Simulation Theory

68
Q

The Situated Simulation Theory predicts that conceptual processing involves extensive use of…?

List 2 things

A

1) The perceptual system
2) The motor or action system

69
Q

Which theory/model the predicts that conceptual processing involves extensive use of the perceptual system and the motor or action system?

A

Situated Simulation Theory

70
Q

Which model/theory addresses the effect of setting when dealing with concepts?

A

Situated Simulation Theory

71
Q

Look at this example:

Ps are asked to think of a bicycle and describe it

Info about the tires will be activated if the Ps need to repair their bicycle, whereas the height of the saddle will be activated if they want to ride it

This supports which model/theory?

A

Situated Simulation Theory

72
Q

Look at this example:

Ps are asked to think of a bicycle and describe it

Info about the tires will be activated if the Ps need to repair their bicycle, whereas the height of the saddle will be activated if they want to ride it

What does this suggest?

A

According to the Situated Simulation Theory, concepts reflect upon current goals

73
Q

According to which model/theory does concepts reflect upon current goals?

A

Situated Simulation Theory

74
Q

Hauk, Johnsrude, and Pulvermüller (2004) tested the notion that the motor system is often involved during access to concept information.

Describe the results of the study

A

1) Brain areas activated by action words are adjacent to and partly overlap with activations produced by the corresponding movement

2) Words such as lick, pick, and kick activate parts of the motor cortex

3) There was great overlap with areas activated when people make the relevant tongue, finger, and foot movements

75
Q

Hauk, Johnsrude, and Pulvermüller (2004) tested the notion that the motor system is often involved during access to concept information.

These are the results

1) Brain areas activated by action words are adjacent to and partly overlap with activations produced by the corresponding movement

2) Words such as lick, pick, and kick activate parts of the motor cortex

3) There was great overlap with areas activated when people make the relevant tongue, finger, and foot movements

What do these results imply?

A

These findings do not show the motor system is necessary or required for concept processing—perhaps activation in areas within the motor strip occurs only after concept activation.

76
Q

Miller, Brookie, Wales, Kaup, and Wallace (2018) obtained suggestive evidence that the motor system is often involved when we access concept information

Describe what happened in the study (List 3 points)

A

1) Ps were instructed to read hand-associated words (e.g., knead; wipe) or foot-associated words (e.g., kick; sprint)

2) Ps then made hand or foot responses after reading the words

3) Response times were recorded

77
Q

Miller, Brookie, Wales, Kaup, and Wallace (2018) obtained suggestive evidence that the motor system is often involved when we access concept information:

1) Ps were instructed to read hand-associated words (e.g., knead; wipe) or foot-associated words (e.g., kick; sprint)

2) Ps then made hand or foot responses after reading the words

3) Response times were recorded

Describe the results of the study

A

Responses were faster when the word was compatible with the limb making the response than when word and limb were incompatible.

(e.g., hand response was faster if Ps previously read a hand-associated word)

(e.g. foot response was faster if Ps previously read a foot-associated word)

78
Q

According to Barsalou, “The understanding of action verbs requires the activation of …?”

A

The motor areas used to carry out the named action

79
Q

Responses were the fastest when…?

a. Hand responses made after reading hand-associated words

b. Hand responses made after reading foot-associated words

c. Foot responses made after reading hand-associated words

A

a. Hand responses made after reading hand-associated words

80
Q

Responses were the slowest when…?

a. Hand responses made after reading hand-associated words

b. Foot responses made after reading foot-associated words

c. Foot responses made after reading hand-associated words

A

c. Foot responses made after reading hand-associated words

81
Q

What is the overall assumption/conclusion of Situated Simulation Theory?

A

Processing of concepts depends on the situation + the perceptual and motor processes in a given task

82
Q

According to the Situated Simulation Theory, processing of concepts depends on 2 things

What are they?

A

1) The situation

2) The perceptual and motor processes in a given task

83
Q

Why does concept processing vary across situations depending on the individual’s goals?

Simply = How come the precise way we process a concept depends on the situation and the perceptual and motor processes engaged by the current task?

A

Because according to the Situated Simulation Theory, processing of concepts depends on the situation + the perceptual and motor processes in a given task

84
Q

What are the 2 main limitations of Situated Simulation Theory?

A

1) How variable are concepts across situations?

The SST exaggerates the extent to which concept processing varies across time and across situations or contexts

Concepts = stable core + context-dependent elements

Concept processing often includes perceptual and/or motor features does not mean it is generally necessary to use perceptual and/or motor processes to understand concepts

2) Are these properties secondary – after concept meaning has been accessed?

Perceptual and motor processes may not be necessary and may even occur after concept meaning has been accessed

85
Q

Name the 2 approaches/hypotheses which discusses where semantic memories are stored?

A

1) Grandmother Cell Hypothesis

2) Feature-based Approach

86
Q

Semantic memories are represented in the brain as whole objects

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

a. Grandmother Cell Hypothesis

87
Q

Different kinds of information about a given object are stored in separate brain regions

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

b. Feature-based Approach

88
Q

Each object/concept has its own node or neuron

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

a. Grandmother Cell Hypothesis

89
Q

e.g. Visual information is stored in one part of the brain, while the auditory linked with that object is stored in another

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

b. Feature-based Approach

90
Q

e.g. There’s a special neuron representing your grandmother

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

a. Grandmother Cell Hypothesis

91
Q

Types of nodes are grouped together (e.g. all living things)

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

a. Grandmother Cell Hypothesis

92
Q

This view is becoming increasingly popular

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

b. Feature-based Approach

93
Q

Describe the Feature-based Approach

A

Emphasises that different kinds of info about a given object are stored in separate brain regions

e.g. Visual information is stored in one part of the brain, while the auditory linked with that object is stored in another

94
Q

Describe the Grandmother Cell Hypothesis

A

Semantic memories are represented in the brain as whole objects

Each object/concept has its own node or neuron

e.g. There’s a special neuron representing your grandmother

Types of nodes are grouped together (e.g. all living things)

95
Q

Everything we know about any given object or concept is stored at a single location within the brain

Which does this statement apply to?

a. Grandmother Cell Hypothesis

b. Feature-based Approach

A

a. Grandmother Cell Hypothesis

96
Q

What is the name of a hybrid model of semantic memory?

A

Hub-and- spoke model

97
Q

Which model is a hybrid model of semantic memory?

a. Hub-and- spoke model
b. Hierarchical Network Model
c. Spreading Activation Model

A

a. Hub-and- spoke model

98
Q

According to the Hub-and- spoke model, what is the Hub?

A

Modality- independent conceptual representations

99
Q

Provides an efficient way of integrating our knowledge of any given concept

Does this apply to:

a. Hub
b. Spokes

A

a. Hub

100
Q

Modality- independent conceptual representations

Does this apply to:

a. Hub
b. Spokes

A

a. Hub

101
Q

According to the Hub-and- spoke model, what are the Spokes?

A

Modality-specific brain areas

Sensory and motor processing occur

102
Q

According to the Hub-and- spoke model, what are the six spokes?

A

1) Visual features
2) Verbal descriptors
3) Olfaction (smell)
4) Sounds
5) Praxis (motor info)
6) Somatosensory info (sensations from the skin and internal organs)

103
Q

1) Visual features
2) Verbal descriptors
3) Olfaction (smell)
4) Sounds
5) Praxis (motor info)
6) Somatosensory info (sensations from the skin and internal organs)

Are these part of the spokes or the hub?

A

Spokes

104
Q

Modality-specific brain areas

Sensory and motor processing occur

Does this apply to:

a. Hub
b. Spokes

A

b. Spokes

105
Q

It is assumed within the Hub-and- spoke model that hubs are located within the …?

A

Anterior temporal lobes

106
Q

It is assumed within the Hub-and- spoke model that spokes are located within the …?

A

Cortical areas of the brain

107
Q

Describe Ishibashi et al.’s (2018) tDCS study

List 2 points

A

1) Ps performed tasks requiring rapid access to semantic info. They were presented with sentences concerning:

a. Tool function (e.g., “scissors are used for cutting”)

b. Or tool manipulation (e.g., “pliers are gripped by the handles”).

2) Researchers applied anodal tDCS (a weak electric current to various brain areas) to the inferior parietal lobule and the anterior temporal lobe

108
Q

Ishibashi et al.’s (2018) tDCS study involved:

1) Ps performed tasks requiring rapid access to semantic info. They were presented with sentences concerning:

a. Tool function (e.g., “scissors are used for cutting”)

b. Or tool manipulation (e.g., “pliers are gripped by the handles”).

2) Researchers applied anodal tDCS (a weak electric current to various brain areas) to the inferior parietal lobule and the anterior temporal lobe

Describe the results of this study

List 2 points

A

1) Tool manipulation task was enhanced when tDCS was applied to IPL

2) Increased performance in both tool function and tool manipulation when tDCS applied to ATL

109
Q

What problems do patients with semantic dementia face?

A

They have severe problems in accessing the meanings of words and concepts

But have good executive functioning in the early stages of deterioration.

110
Q

What is semantic dementia?

A

A condition involving damage to the anterior temporal lobe

111
Q

A condition involving damage to the anterior temporal lobe

Where patients have severe problems in accessing the meanings of words and concepts

This is known as…?

A

Semantic dementia

112
Q

Give 2 examples of general semantic deficits

A

1) Naming objects
2) Sorting objects in categories

113
Q

Patients with semantic dementia eventually lose the ability to speak since they can’t name things

This suggests they have problems with:

a. The hub
b. The spokes

A

a. The hub

114
Q

List an example of category-specific deficits

A

Greater difficulty identifying/naming living than nonliving objects

115
Q

Greater difficulty identifying/naming living than nonliving objects

This is known as…?

a. Semantic dementia
b. Category-specific deficits

A

b. Category-specific deficits

116
Q

Semantic deficits in naming objects

This is known as…?

a. Semantic dementia
b. Category-specific deficits

A

a. Semantic dementia

117
Q

Semantic deficits in sorting objects in categories

This is known as…?

a. Semantic dementia
b. Category-specific deficits

A

a. Semantic dementia

118
Q

What did patients K.C. and E.W. struggle with?

a. Semantic dementia
b. Category-specific deficits

A

b. Category-specific deficits

119
Q

Patients K.C. and E.W. struggled with category-specific deficits.

What were they able to do?

A

They were able to correctly name pictures of non- living things:

e.g., car and table, fruits and vegetables

120
Q

Patients K.C. and E.W. struggled with category-specific deficits.

What were they not able to do/performed poorly with?

A

They performed poorly when asked to name
pictures of living animals compared to non-animals

121
Q

Patients who are able to correctly name pictures of non- living things (e.g. table) but struggle to correctly name pictures of living things (e.g. animals)

What is this condition known as…?

a. Semantic dementia
b. Category-specific deficits

A

b. Category-specific deficits

122
Q

True or False?

There have been increasing evidence that concepts are organized in hub (core) + spokes (modality-specific)

A

True

123
Q

What are 4 limitations to the Hub-and- spoke model?

A

1) The role of anterior temporal lobe may be more complex

2) Does familiarity with concepts affect their organisation in the hub

3) How many ”spokes”

4) How is information integrated between the spokes and the hub?

124
Q

Suggests that concepts are organised in a hierarchical way with nodes and features along a hierarchy

a. Spreading Activation Model

b. Hierarchical Network Model

c. Hub-and-Spoke model

d. Episodic model

A

b. Hierarchical Network Model

125
Q

Stresses semantic relatedness and distance between concepts

a. Spreading Activation Model

b. Hierarchical Network Model

c. Hub-and-Spoke model

d. Episodic model

A

a. Spreading Activation Model

126
Q

Provides a neurobiological way that concepts are organized incorporating modality- general (hub) and modality-specific (spokes) features

a. Spreading Activation Model

b. Hierarchical Network Model

c. Hub-and-Spoke model

d. Episodic model

A

c. Hub-and-Spoke model

127
Q

According to Barsalou concepts incorporate perceptual and motor features and their processing is affected by …?

A

The context in which they are encountered

YEAR 2 Cognition (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions