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Aggression is a multi-dimensional concept, but it can be generally defined as behavior that inflicts pain or harm on another. [ 2 ] The genetic-developmental theory states that individual differences in a continuous phenotype result from the action of a large number of genes , each exerting an effect that works with environmental factors to ...
Displaced aggression can also be known as triggered displaced aggression which is defined by a person being triggered, or provoked, by another to cause a display of negative emotion. [3] These outbursts of negative emotion are a result of not being able to control emotions and letting one's anger build over time.
The large body of literature on the behavioral immune system is focused on behaviors triggered by pathogen cues in the environment and the role disgust plays in mitigating exposure before infection. However, the emotion associated with being sick, lassitude , that is triggered by an active infection may also act as behavioral defense mechanism ...
The body's primary stress management system is the HPA axis. The HPA axis responds to physical and mental challenge to maintain homeostasis in part by controlling the body's cortisol level. Dysregulation of the HPA axis is implicated in numerous stress-related diseases, with evidence from meta-analyses indicating that different types/duration ...
The causes of violent behavior in people are often a topic of research in psychology. Neurobiologist Jan Vodka emphasizes that, for those purposes, "violent behavior is defined as overt and intentional physically aggressive behavior against another person." [69] Based on the idea of human nature, scientists do agree violence is inherent in humans.
Aggression in women may have evolved to be, on average, less physically dangerous and more covert or indirect. [60] [61] However, there are critiques for using animal behavior to explain human behavior, especially in the application of evolutionary explanations to contemporary human behavior, including differences between the genders. [62]
Furthermore, in all animals, the nervous system is the organ of behavior. Therefore, every biological and behavioral variable that influences behavior must go through the nervous system to do so. Present-day research in behavioral neuroscience studies all biological variables which act through the nervous system and relate to behavior. [10]
By studying and gaining knowledge about the mechanisms of the nervous system, physiological psychologists can uncover many truths about human behavior. [2] [page needed] Unlike other subdivisions within biological psychology, the main focus of psychological research is the development of theories that describe brain-behavior relationships.