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Related Concept Videos

Aggression01:47

Aggression

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 hire...
Functional Brain Systems: Limbic System01:15

Functional Brain Systems: Limbic System

The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
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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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The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the cerebellum's...
Operant Conditioning Intervention01:24

Operant Conditioning Intervention

Operant conditioning serves as a foundational principle in therapeutic interventions aimed at modifying maladaptive behaviors. Central to this approach is the notion that behaviors, both adaptive and maladaptive, are learned through reinforcement. By analyzing the environmental factors that reinforce problematic behaviors, clinicians can design interventions to weaken these reinforcements and replace maladaptive behaviors with healthier alternatives.
In operant conditioning, behaviors that are...
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The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is  a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological states or needs.

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Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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Corticolimbic function in impulsive aggressive behavior.

Emil F Coccaro1, Chandra Sekhar Sripada, Rachel N Yanowitch

  • 1Clinical Neuroscience and Psychopharmacology Research Unit, Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, Illinois. ecoccaro@yoda.bsd.uchicago.edu

Biological Psychiatry
|May 3, 2011
PubMed
Summary
This summary is machine-generated.

Neuroimaging reveals brain circuit abnormalities in aggressive behavior. This review examines neural systems involved in impulsive aggression and their dysfunction in psychiatric disorders like borderline personality disorder.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Behavioral Science

Background:

  • Aggressive behavior has been linked to abnormalities in brain circuits.
  • Neuroimaging studies increasingly identify these neural underpinnings.

Purpose of the Study:

  • To review the neural systems involved in impulsive/reactive aggression.
  • To examine how these systems are affected in psychiatric disorders characterized by elevated aggression.

Main Methods:

  • Review of neuroimaging studies.
  • Analysis of animal and human lesion evidence.
  • Focus on corticolimbic circuits and frontoparietal regions.

Main Results:

  • Identification of three key neural systems in impulsive aggression: subcortical impulse generation, decision-making/social-emotional processing, and frontoparietal emotion regulation.
  • Abnormalities in these systems are implicated in psychiatric disorders such as borderline personality disorder and antisocial personality disorder.

Conclusions:

  • Corticolimbic circuits play a crucial role in mediating aggressive behavior.
  • Dysfunction in these neural systems is a key feature of certain psychiatric disorders with high reactive aggression.