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Related Concept Videos

Decision Making: Traditional Method01:14

Decision Making: Traditional Method

The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
Decision Making01:20

Decision Making

Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Decision Making: P-value Method01:09

Decision Making: P-value Method

The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can have a...

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Related Experiment Video

Updated: Jul 2, 2026

The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents
09:43

The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents

Published on: August 10, 2014

Modification of response time variability in a decision-making task.

Gijsbert Stoet1, Hannes Ruge, Lawrence H Snyder

  • 1Department of Anatomy and Neurobiology, Washington University School of Medicine, St Louis, Missouri, USA. g.stoet@leeds.ac.uk

Neuroreport
|August 13, 2008
PubMed
Summary
This summary is machine-generated.

Human response times (RTs) adapt to trial timing, reducing variability in sequences. This suggests RTs may not always reflect the minimal decision-making time, impacting behavioral data interpretation.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Human Behavior

Background:

  • Single-unit recordings in monkeys indicate decision information is available earlier in the posterior parietal cortex than behavioral response times (RTs) suggest.
  • This discrepancy may stem from the brain's strategy to minimize RT variability in repetitive tasks.

Purpose of the Study:

  • To investigate whether humans adapt their timing based on surrounding trial durations.
  • To determine if experimentally introduced trial duration variability affects human RTs and their variability.

Main Methods:

  • Humans performed tasks with experimentally manipulated trial durations.
  • Response times (RTs) and their variability were analyzed in relation to the timing of preceding and succeeding trials.

Main Results:

  • Human participants demonstrated adaptive timing, adjusting their RTs based on the duration of surrounding trials.
  • This adaptation led to a significant reduction in RT variability within trial sequences.

Conclusions:

  • Behavioral response times (RTs) do not invariably represent the minimal time required for decision-making.
  • The brain actively modulates RTs to reduce variability, a factor crucial for interpreting behavioral data in neuroscience and psychology.