Functional MRI Techniques

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What is a characteristic of indirect measures of neuronal activity?

Fast response to changes in neuronal activity

Direct measurement of electrical activity in the brain

High spatial precision within invasive techniques

Dependence on vascularization of the brain (correct)

What is the primary goal of resting state fMRI?

To examine patterns of brain activity during rest (correct)

To measure changes in pupil size

To correlate brain activity with behavioral responses

To study task-driven brain activity

What is the primary unit of measurement in EEG?

Membrane potential

Intra-cellular activity

Electrical potential recorded at the scalp (correct)

Local field potential

What is the primary advantage of invasive recordings?

Ability to record from single neurons Signup and view all the answers

What is the primary mechanism of transcranial magnetic stimulation (TMS)?

Magnetic stimulation of the brain Signup and view all the answers

What is the primary application of microstimulation in the context of neuroscience?

To establish causality between brain activity and behavior Signup and view all the answers

What is the primary finding of the study correlating pupil diameter and spiking rate?

Pupil diameter increases with increasing spiking rate Signup and view all the answers

What is the primary function of the superior colliculus (SC) in humans and monkeys?

To contain maps of the visual field Signup and view all the answers

Which neuroscientific method is based on changes in blood oxygenation due to localized brain activity?

fMRI Signup and view all the answers

What is the most common application of psychophysiological responses in cognitive psychology?

Assessing attention and workload Signup and view all the answers

What is the primary focus of behavioural methods in cognitive neuroscience research?

Analyzing behaviour and performance Signup and view all the answers

What is the name of the phenomenon where haemoglobin has different magnetic properties when oxygenated or not?

BOLD response Signup and view all the answers

What is the function of a coil in functional MRI?

Generating a powerful magnetic field Signup and view all the answers

What is the purpose of single-cell physiology in cognitive neuroscience research?

Recording single neurons Signup and view all the answers

What is the outcome of stimulating a group of cells that represents a dark location in the visual field?

Pupil size is increased Signup and view all the answers

What is the purpose of controlling for the unspecific effect of inducing an electrical current in microstimulation?

To prevent false positives in the results Signup and view all the answers

What is the significance of double dissociations in neuropsychology?

To infer the function of a specific brain region Signup and view all the answers

What is the primary goal of microstimulation in the context of neuroscience?

To demonstrate the causal role of a brain region in behavior Signup and view all the answers

What is the advantage of using single-cell recordings over other electrophysiological methods?

It provides a more precise measurement of neural activity Signup and view all the answers

What is the purpose of using transcranial magnetic stimulation (TMS) in cognitive neuroscience?

To temporarily disrupt neural activity in a specific brain region Signup and view all the answers

What is the difference between microstimulation and single-cell recordings?

Microstimulation involves stimulating a group of cells, while single-cell recordings involve measuring the activity of a single cell Signup and view all the answers

What is the significance of the receptive field (RF) in the context of microstimulation?

It refers to the part of the visual field to which the cell is sensitive Signup and view all the answers