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Related Concept Videos

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.
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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.
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Reason and Intuition01:37

Reason and Intuition

The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the brain can only use...
Sampling Plans01:23

Sampling Plans

Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
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Sampling Methods: Overview01:06

Sampling Methods: Overview

A sample refers to a smaller subset representative of a larger population. In analytical chemistry, studying or analyzing an entire population is often impractical or impossible. Therefore, samples are used to draw inferences and generalize the whole population. The sampling method selects individuals or items from a population to create a sample. Standard sampling methods include random, judgemental, systematic, stratified, and cluster sampling. 
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Random Sampling Method

Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest. Among the various sampling methods used by...

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Related Experiment Video

Updated: May 15, 2026

Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance
13:20

Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance

Published on: December 5, 2025

Rhythmic sampling of decision alternatives through attention.

Alireza Valizadeh1

  • 1The Zapata-Briceño Institute of Neuroscience for Human Intelligence Research, Madrid, Spain; Physics Department, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran.

Trends in Cognitive Sciences
|May 13, 2026
PubMed
Summary

The brain rhythmically accesses competing choices using covert spatial attention, challenging continuous decision-making models. This suggests attention controls access timing, not representation changes, during decision formation.

Keywords:
alpha rhythmattentiondecision-makingneural oscillationsrhythmic sampling

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Decision Science

Background:

  • Continuous models of decision-making assume constant evaluation of alternatives.
  • Oscillatory brain dynamics are increasingly recognized as fundamental to cognitive processes.
  • Covert spatial attention plays a crucial role in information selection.

Purpose of the Study:

  • To investigate the temporal dynamics of accessing competing alternatives during decision-making.
  • To challenge continuous models by proposing a temporally structured evaluation process.
  • To determine the role of attention in the timing of information access.

Main Methods:

  • Utilized electrophysiological recordings to examine brain activity.
  • Designed tasks to probe covert spatial attention and decision processes.
  • Analyzed neural oscillations to identify rhythmic sampling patterns.

Main Results:

  • Evidence suggests the brain rhythmically samples competing alternatives.
  • Covert spatial attention dictates the timing of alternative access.
  • Findings contradict the notion of continuous evaluation of options.

Conclusions:

  • Decision-making evaluation is temporally structured by oscillatory neural dynamics.
  • Attention acts as a gatekeeper, controlling *when* alternatives are accessed.
  • This challenges traditional continuous models, proposing a discrete, rhythm-based access mechanism.