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Related Concept Videos

Aggression01:47

Aggression

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Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
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Automatic Processing and Automatic Social Behavior01:28

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Automatic processing refers to the cognitive operations that occur without conscious intent or awareness, playing a fundamental role in shaping social cognition and behavior. These processes enable individuals to navigate complex social environments efficiently by relying on mental shortcuts and pre-existing knowledge structures known as schemas. One of the most influential mechanisms underlying automatic processing is priming, which subtly activates mental representations through exposure to...
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Secondary Motives: Affiliation Motivation and Aggression Motivation01:21

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Affiliation motivation is the intrinsic desire to connect with others and belong to a social group, which plays a crucial role in forming and maintaining personal relationships. This type of motivation is essential for psychological well-being, as it provides individuals with a sense of community and support. An example of this is a student who joins a study group in order to feel a sense of connection. People with high affiliation motivation actively seek social approval, take satisfaction in...
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Agonism and Antagonism: Quantification01:14

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When drugs are administered, they can elicit either an agonist or antagonist effect on the body. Agonism occurs when a drug activates a specific receptor, triggering a biological response. On the other hand, antagonism happens when a drug binds to the same receptors but blocks their activation, thereby preventing a biological response.
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Fixed Action Patterns01:06

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A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
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Bullying02:04

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A modern form of aggression is bullying. As you learn in your study of child development, socializing and playing with other children is beneficial for children’s psychological development. However, as you may have experienced as a child, not all play behavior has positive outcomes. Some children are aggressive and want to play roughly. Other children are selfish and do not want to share toys. One form of negative social interactions among children that has become a national concern is...
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Related Experiment Video

Updated: Feb 16, 2026

Boldness, Aggression, and Shoaling Assays for Zebrafish Behavioral Syndromes
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Automatic quantification of juvenile zebrafish aggression.

Héctor Carreño Gutiérrez1, Irene Vacca1, Anna Inguanzo Pons1

  • 1Department of Neuroscience, Psychology and Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK.

Journal of Neuroscience Methods
|December 25, 2017
PubMed
Summary

Researchers developed a new automated system to measure zebrafish aggression and locomotion. This method aids in screening drugs for potential psychiatric disorder treatments.

Keywords:
AggressionBehaviourDrug treatmentLocomotionZebrafish

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Area of Science:

  • Neuroscience
  • Behavioral Science
  • Pharmacology

Background:

  • Aggression is a common psychiatric symptom with non-specific drug treatments.
  • Zebrafish are a suitable model for aggression research due to their size and amenability to manipulation.
  • Existing methods for studying aggression in zebrafish can be time-consuming and less standardized.

Purpose of the Study:

  • To establish a novel automated setup for quantifying aggression and locomotion in juvenile zebrafish.
  • To validate the accuracy of the new automated system.
  • To assess the utility of the system for drug screening and identifying novel treatments for aggression.

Main Methods:

  • Developed an automated system to quantify aggression and locomotion in juvenile zebrafish.
  • Validated the software by comparing its output to manual behavioral quantification.
  • Recorded up to 12 juvenile zebrafish simultaneously to increase data acquisition efficiency.

Main Results:

  • Successfully validated the novel automated quantification software.
  • Characterized the typical aggression patterns in one-month-old juvenile zebrafish.
  • Demonstrated the system's ability to detect changes in aggression induced by genetic mutation or drug administration.

Conclusions:

  • The automated zebrafish aggression quantification system is effective and efficient.
  • This setup can be used to screen for compounds that reduce aggression.
  • The system represents a promising step toward developing new treatments for aggression-related psychiatric disorders.