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Related Concept Videos

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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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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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Related Experiment Video

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Flypub To Study Ethanol Induced Behavioral Disinhibition and Sensitization
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Alcohol-induced Aggression.

Nigel S Atkinson1

  • 1Department of Neuroscience and The Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, TX, USA.

Neuroscience Insights
|November 29, 2021
PubMed
Summary
This summary is machine-generated.

Ethanol, found in fermented foods, increases aggression in male fruit flies (Drosophila melanogaster). Both the smell and consumption of ethanol stimulate fighting behavior, offering insights into aggression

Keywords:
Alcohol-use disorderDrosophilaaggressionalcoholethanol

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Area of Science:

  • Neuroscience
  • Ethology
  • Genetics

Background:

  • Intraspecies aggression, often male-driven, typically centers on acquiring reproductive resources.
  • Human aggression can be maladaptive and is frequently linked to ethanol consumption.
  • The fruit fly, Drosophila melanogaster, is a valuable model for studying ethanol's effects on the nervous system and behavior, including aggression.

Purpose of the Study:

  • To investigate how ethanol influences aggression in Drosophila melanogaster.
  • To explore the mechanisms by which ethanol odor and consumption stimulate male aggression.

Main Methods:

  • Utilized fly fighting assays to observe and quantify aggression in Drosophila melanogaster.
  • Exposed flies to environmentally relevant concentrations of ethanol (odor and consumption).

Main Results:

  • Ethanol exposure, through both odor and consumption, significantly increases aggression in male fruit flies.
  • These effects were observed at ethanol concentrations likely encountered by flies in their natural habitat.
  • Suggests a role for ethanol in modulating aggressive behaviors related to resource competition.

Conclusions:

  • Ethanol acts as a potent stimulant of aggression in male Drosophila melanogaster.
  • Ethanol's dual action (odor and ingestion) highlights its significant impact on fly behavior.
  • Fly fighting assays provide a viable model for studying ethanol's effects on neural pathways underlying aggression.