Psychophysiological Methods in Neuroscience Flashcards

1
Q

Blood-oxygen-level-dependent (BOLD)

A

The signal typically measured in fMRI that results from changes in the ratio of oxygenated hemoglobin to deoxygenated hemoglobin in the blood.

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2
Q

Central nervous system

A

The part of the nervous system that consists of the brain and spinal cord.

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3
Q

Deoxygenated hemoglobin

A

Hemoglobin not carrying oxygen.

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4
Q

Depolarization

A

A change in a cell’s membrane potential, making the inside of the cell more positive and increasing the chance of an action potential.

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5
Q

Hemoglobin

A

The oxygen-carrying portion of a red blood cell.

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6
Q

Hyperpolarization

A

A change in a cell’s membrane potential, making the inside of the cell more negative and decreasing the chance of an action potential.

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7
Q

Invasive Procedure

A

A procedure that involves the skin being broken or an instrument or chemical being introduced into a body cavity.

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8
Q

Lesions

A

Abnormalities in the tissue of an organism usually caused by disease or trauma.

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9
Q

Neural plasticity

A

The ability of synapses and neural pathways to change over time and adapt to changes in neural process, behavior, or environment.

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10
Q

Neuroscience methods

A

A research method that deals with the structure or function of the nervous system and brain.

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11
Q

Noninvasive procedure

A

A procedure that does not require the insertion of an instrument or chemical through the skin or into a body cavity.

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12
Q

Oxygenated hemoglobin

A

Hemoglobin carrying oxygen.

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13
Q

Parasympathetic nervous system (PNS)

A

One of the two major divisions of the autonomic nervous system, responsible for stimulation of “rest and digest” activities.

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14
Q

Peripheral nervous system

A

The part of the nervous system that is outside the brain and spinal cord.

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15
Q

Positron

A

A particle having the same mass and numerically equal but positive charge as an electron.

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16
Q

Psychophysiological methods

A

Any research method in which the dependent variable is a physiological measure and the independent variable is behavioral or mental (such as memory).

17
Q

Spatial resolution

A

The degree to which one can separate a single object in space from another.

18
Q

Sympathetic nervous system (SNS)

A

One of the two major divisions of the autonomic nervous system, responsible for stimulation of “fight or flight” activities.

19
Q

Temporal resolution

A

The degree to which one can separate a single point in time from another.

20
Q

Voltage

A

The difference in electric charge between two points.