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Decision Making

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...

Migration

Migration

Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.

Decision Making: Traditional Method

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...

The Anchoring-and-Adjustment Heuristic

The Anchoring-and-Adjustment Heuristic

In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...

Decision Making: P-value Method

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...

Reason and Intuition

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...

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Related Experiment Video

Updated: Aug 12, 2025

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

Published on: August 2, 2018

Deciding when to move.

Lauren Sullivan^1,2,3

¹Department of Plant Biology, Michigan State University, East Lansing, United States.

|January 31, 2023

Summary

This summary is machine-generated.

Dandelion seeds close their plumes in wet weather to prevent dispersal when winds are unfavorable. This adaptation ensures better seed survival and germination rates by avoiding unfavorable conditions.

Keywords:

Dandelion biomechanics mechanical ecology movement ecology physics of living systems plant aerodynamics plant biology seed dispersal taraxacum officinale

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Area of Science:

Plant biology
Ecology
Biophysics

Background:

Dandelion seed dispersal is crucial for plant propagation.
Environmental factors significantly influence seed dispersal mechanisms.

Discussion:

The study investigates the phenotypic plasticity of dandelion seed plumes in response to humidity.
Plume closure in wet conditions is a direct response to reduced aerodynamic efficiency and increased drag.

Key Insights:

Dandelion seed plumes exhibit hygroscopic behavior, closing in high humidity or wet conditions.
This response minimizes seed dispersal during periods of poor wind for effective propagation.

Outlook:

Further research could explore the genetic basis of this hygroscopic response.
Understanding such adaptations can inform ecological models and conservation strategies for plants with similar dispersal mechanisms.