Brain imaging

Question

Which are structural techniques?

Answer 1

X-ray and CT

Answer 2

Contrast agents

Answer 3

Diffusion Tensor Imaging

Answer 4

Blood vessels

Answer 5

Different brain regions

Answer 6

Ventricles

Answer 7

Electrical activity

Answer 8

Shrunken; expanded

Answer 9

Expanded; shrunken

Answer 10

Contrast agents

Answer 11

Electrocorticography

Answer 12

Gadolinium

Answer 13

Haemoglobin

Answer 14

Phosphorescents

Answer 15

Shows fibre tracts

Answer 16

Measures hydrogen densities

Answer 17

Is a structural MRI technique

Answer 18

Water molecules diffuse more easily through the cross-section of neurons than along the long axis

Answer 19

Makes a lot of assumptions

Answer 20

Electrocorticography

Answer 21

Diffusion Tensor Imaging

Answer 22

Gadolinium

Answer 23

Active regions release Nitrous Oxide to local arterioles

Answer 24

Nitrous Oxide released retroactively

Answer 25

Causes arterioles to constrict

Answer 26

Very slow change

Answer 27

Causes change in ratio of de:oxygenated blood

Answer 28

Contrast agents

Answer 29

Contrast agents

Answer 30

Electrocorticography

Answer 31

Single-unit recording

Answer 32

Electrocorticography

Answer 33

Diffusion tensor imaging

Answer 34

Contrast X-ray angiography

Answer 35

Localise epileptic foci

Answer 36

Opportunistic research

Answer 37

Avoid eloquent areas during surgery

Answer 38

Research into language

Answer 39

Patients with mild clinical problems

Answer 40

Strength of magnetic field

Answer 41

Strength of electrical field

Answer 42

Location of magnetic field

Answer 43

Location of electrical field

Answer 44

Liquid helium

Answer 45

Nitrous oxide

Answer 46

Because MRI scans magnetize tissues for weeks

Answer 47

Due to risk of overheating the machine

Answer 48

Equally strong but later

Answer 49

Weaker and later

Answer 50

Stronger and earlier

Answer 51

Children's fusiform gyrus does not respond to face stimuli

Answer 52

Normalise brains

Answer 53

Allows statistical analyses on brain maps

Answer 54

Is a standard size and shape

Answer 55

Used for structural brain images

Answer 56

Talairach atlas

Answer 57

Tesseract atlas

Answer 58

Monoamine atlas

Answer 59

Talairach atlas

Answer 60

Tesseract atlas

Answer 61

Clinically

Answer 62

Pre-surgical and radiotherapy planning

Answer 63

Identify eloquent cortices

Answer 64

Rarely in hospitals

Answer 65

Localising epileptic foci

Answer 66

Pre-surgery mapping of eloquent cortices

Answer 67

Very active in novel environments

Answer 68

Ties together place cells

Answer 69

Tuned to specific locations in an environment

Answer 70

Different place cells fire at different phases of the theta oscillation

Answer 71

Important for semantic memory

Answer 72

Measured by EEG

Answer 73

Diencephalonic

Answer 74

Connectivity

Answer 75

Connectomics

Answer 76

Machine reading

Answer 77

Based on graph theory

Answer 78

Emphasises brain structures over brain networks

Answer 79

Multi-voxel pattern analysis

Answer 80

Based on machine-learning

Answer 81

Multi-voxel pattern analysis

Answer 82

Analyses patterns of activity to complex stimuli

Answer 83

Analyses patterns of activity to simple stimuli

Answer 84

Based on graph theory

Answer 85

Based on machine-learning

Answer 86

Huge amount of data

Answer 87

Increased possibilty of false positives

Answer 88

Too expensive to have large samples

Answer 89

Large researcher degrees of freedom

Answer 90

Statistical double-dipping

Answer 91

Results tend to have a large impact on society

Answer 92

Pre-registration of hypotheses

Answer 93

Data sharing

Answer 94

Gone from 1.5 T to 7 T

Answer 95

Better image stability

Answer 96

Better signal:noise ratio

Answer 97

Strongest magnets can reslve activity in different cortical layers

Answer 98

Higher temporal resolution

Answer 99

Moving from SQUID to Optically Pumped Magnetometers

Answer 100

Human Neocortical Neurosolver

Answer 101

Dramatically improved data acquisition capabilities

Answer 102

Strongest magnets can resolve activity in different cortical layers

Answer 103

Require liquid helium

Answer 104

Sensors placed directly on scalp

Answer 105

But reduced signal:noise ratio

Answer 106

Uses computers to map underlying circuit-level activity

Answer 107

Only one place in the world has them

Answer 108

Low specificity

Answer 109

High sensitivity

Answer 110

High standardization

Answer 111

Most psychiatric imaging studies are done on groups

Answer 112

Different disorders have similar neural patterns

Answer 113

DSM has much higher validity

Answer 114

Farah & Gillihan

Answer 115

Aubertin & Bouillaud

Answer 116

Flouren & Gerschwind

Answer 117

Can suggest new treatments

Answer 118

DBS came from identifying deep brain areas that are hypoactive in depression

Answer 119

Quantifying and predicting treatment response

Answer 120

Classifying syndromes based on neuroimaging profile

Answer 121

Real-time neurofeedback may be a treatment in itself

	Creado por Jennifer Khouw hace alrededor de 6 años

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Brain imaging

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