Chapter 1 Flashcards

1
Q

Emergent Property

A

Charactersitic of a brain as a whole. Cognititon is not just belonging to one individual neruon
Connection and interaction of neurons
Have to understand from individual neruons to large scale networks

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2
Q

How do we study multiple levles of the brain

A
Individual - neurons
Connection - synapses
Network of neurons
Large scale regions- lobes hemis
Large scale networks -
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3
Q

Neurons

A

Depend on input and outputs

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4
Q

Tracers

A

Map connection of neurons. Invasive

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5
Q

Diffusion Tensor Imaging

A

Magnetic resonance ingmaigng (MRI) - sensitive to where water is diffused through the brain
Water travel better through white matter (axon in the brain)

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6
Q

Correlation methods

A

Brain activity and behavior

Invasive- use microelectrodes into the brain to record invidual neurons or groups

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7
Q

Functional connectivity

A

Correlates with a partiicular behavior, so we know some brain functoin

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8
Q

Microelectrodes

A

Invasive
High emportal resolution
High spatial resolution

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9
Q

Electrocorticography or Intracranial EEG

A

Eletrodes into humanbrain
High temperotal resolution
High spatical resolution
Invasive- seizures patients

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10
Q

Electronencephalography

A

EEG
Not invasive
High temprotal resolution
Low spatial resolution on scalp

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11
Q

Magnetoencephalography

A

Non-invaisve technique
High temproal resolution
Better spatical than EEG- magnetic fields are not disorted

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12
Q

Positron emission tomography

A

Used radioactive labeled chemicals into body and mapping where they bind in the brain
Use of tracers
Bad temporal resolution
Better spatial than eeg or meg

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13
Q

Magnetic resonance imaging

A

MRI
High contrast image of tissues from magnetic resonance properties
Cannot see actiivty/ function
Have to use fmri- tracks singals from oxygen in blood

Temporal better than pet
spatial

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14
Q

Temporal vs spatial resolution best to worse

A

T: eeg meg, fmri, pet tmefp teams mean enough for plays
S: fmri, pet, meg, eeg sfpme single fellows provide meanless emotion

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15
Q

Correlation not causation

A

Correlation does not mean its 100% needed or that specific activity is resulting in the function

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16
Q

Lesion methods

A

Study of patients who have brain dmg,

Helps find causation

17
Q

Types of lesion methods

A
tramatic brain injuries
Tumors
Epilepsy
Strokes
Infections 
Degenrative diseases
Hypoxia
18
Q

Lesion studies caviates

A

Hard to find dmg specific region

19
Q

Stimulation method

A

Stimulate a region of the brain

Allows us to detemrine whether that activity area is important

20
Q

Transcranial magnetic stimuation / rTMS

A

Noninvasive
Brief magnetic pluse to a specific region of the brain on scalp
Reptitivie: used for reseach and therapy

21
Q

Transcranial direct current stimulation

A

Noninvasive

Mild eletrical currents onto scalp on brain

22
Q

Stmulation caveats

A

Not selective - Area can spread

Side effects