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Module 7 > Spatial Representation > Flashcards

Spatial Representation Flashcards

1
Q

Which type of spatial representation is associated with the hippocampus?

A

Allocentric/Geocentric

It is vital for allocentric coding

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2
Q

Which type of sptial representation is associated with the parietal cortex?

A

Egocentric

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3
Q

Spatial maps that are relative to the body are..

A

Egocentric

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4
Q

Spatial maps that are relative to room or environment axis

A

Allocentric

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5
Q

Which type of spatial maps takes longer and is more difficult to compute

A

Egocentric

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6
Q

Which part of the hippocampus was found to be larger in Taxi Drivers?

A

Posterior
The hippocampus was only activated while they were thinking about the route, not while they were actually driving/executing the route

Anterior = smaller

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7
Q

Posterior hippocampus is associated with

A

spatial

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8
Q

Which 3 types of cells are found in the hippocampal formation and create cognitive maps?

A

1) Place Cells (John O’Keefe)
2) Grid Cells (Hafting et at)
3) Head Direction Cells - Ranck 1984

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9
Q

Input of the hippocampus

A

Entorhinal cortex

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10
Q

What did the Morris Watermaze teach us?

A

Lesions to the hippocampus resulted in impaired allocentric spatial strategies to solve the mazes

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11
Q

The Cells found in the Entorhinal cortex are:

A

Grid Cell

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12
Q

The cells found in the Presubiculum + anterior Thalamus

A

Head-Direction Cells

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13
Q

Cells found in the hippocampus

A

Place Cells

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14
Q

The cells that allow animals to understand their position in space

A

Grid Cells

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15
Q

Grid cells fire in an _ manner

A

Symmetrical

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16
Q

The cells that fire when an animal occupies a specific location

A

Place Cells

17
Q

Head cells fire when…

A

the head is facing a specific direction. They provide a representation of space

18
Q

Place cells still work when you remove head-direction cells

A

false

19
Q

Head direct cells work without place cells

A

True!!

20
Q

How is there a direct connect between allocentric and egocentric spatial maps

A

Connections between Parietal lobe Hippocampus

21
Q

Which part of the parietal lobe codes the head

A

Ventral Intraparietal Sulcus

22
Q

Which part of the parietal lobe codes reach?

A

Medical Intraparietal Sulcus

23
Q

Which part of the parietal lobe codes Grasp?

A

Anterior Intraparietal Sulcus

24
Q

Which part of the parietal lobe codes the eye?

A

Lateral Intraparietal Sulcus

25
Q

What is distinct about the parietal lobe?

A

distinct neurons form egocentric frames of reference

26
Q

The name of the disorders when the parietal lobe cannot make a spatial map?

A

Optic Ataxia

27
Q

Egocentric spatial maps help us…

A

understand the location of an object in relation to our body - sensorimotor integration

e.g. putting a letter in a box or pouring a glass of liquid

28
Q

Hemispatial neglect is caused by…

A

parietal lobe damage to the contralateral side

29
Q

Piazza Del Duomo Study proved…

Bisiach and Luzzati 1978

A

Not a visual defect but spatial defect
Memory of complete layout was still present BUT retrieval was neglected

==>Due to damage to the parietal cortex not egocentric map was formed

30
Q

Which spatial cells develop first?

A

Head cells

31
Q

Cells that develop suddently in an older stage of development

A

Grid cells

P21 - in rats

32
Q

Which cells appear early but develop gradully?

A

Place cells

Adult like place cells are found in very young

33
Q

What impacted the development of place cells in rats?

A

Boundary Vector Cells

And

Grid Cells

34
Q

Boundary cells

A

Develop early

Found in the subiclum + entorhinal cortex

Impact the development of place cells
- Boundary cells may provide the input that drives and stabilises early place fields

35
Q

How do boundary cells impact place cell development?

A

Provide input for early development and stablise early place maps

Physical boundaries helped develop place cells

36
Q

How do grid cells impact place cells development?

A

Stabilise place maps in locations away from boundaries

–>The abrupt emergence of grid cells coincides with the shift from boundary to centre coding in CA1

37
Q

Which type of spatial processing develops first:

A

Allocentric Process ==> 3 years old
Develops first
Consistent with early neuronal representations

38
Q

Intrinsic spatial processing

A

develops at 6 years old

39
Q

Cross-cultural studies have shown that _ has an impact on the type of spatial processing we use

A

Language

Dutch = egocentric
Namibia and apes = allocentric
–>This is our ‘default’ model of operation

Module 7 (13 decks)

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