Het brein in beeld - Mental Chronometry

6 important questions on Het brein in beeld - Mental Chronometry

What is mental chronometry?

Can be defined as the study of the time-course of information processing in the human nervous system.

The basic idea is that changes in the nature or efficiency of information processing will manifest themselves in the time it takes to complete a task.

What is additive factors method and what are its 4 stages?

A general method for dividing reaction times into different stages.

1. Encoding
2. Comparing
3. Decision
4. Responding

What is associative priming?

Refers to the fact that reaction times are faster to a stimulus if that stimulus is preceded by a stimulus that tends to co-occur with it in the environment.
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What are the two classifications of ERP components?

1. Exogenous components/evoked potentials: those that appear to depend on the physical proporties of a stimulus.

2. Endogenous components: appear to depend on properties of task.

What is inverse problem?

In an ERP study, the electrical potential at the scalp is known, but the number; location and magnitude of the electrical sources in the brain are unknown.

What is dipole modeling?

Solving the inverse problem. This requires assumptions to be made about how many regions of the brain are critical for generating the observed pattern of scalp potentials.

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