Evaluation of an evolutionary model of self-preservation and self-destruction.

  title={Evaluation of an evolutionary model of self-preservation and self-destruction.},
  author={R. Michael Brown and E Dahlen and Carla Mills and Jon Rick and Arturo Biblarz},
  journal={Suicide \& life-threatening behavior},
  volume={29 1},
According to deCatanzaro's mathematical model of self-preservation and self-destruction, staying alive actually may reduce inclusive fitness for an individual who is low in reproductive potential and, at the same time, poses such a burden to close kin that it costs them opportunities for reproduction. Predictions generated from this model were tested using 175 university students as subjects and variables constructed from a 164-item questionnaire. The criterion variables were separate measures… 
Suicide as a derangement of the self-sacrificial aspect of eusociality.
The argument that death by suicide among humans is an exemplar of psychopathology and is due to a derangement of the self-sacrificial behavioral suite found among eusocial species is made.
Empirical support for an evolutionary model of self-destructive motivation.
Predictions generated from an evolutionary account of self-destructive motivation in two survey studies of 18-24-year-old university students showed that the positive relationship between perceived burden to family and suicide ideation was amplified for participants with low measured health and romantic relationship satisfaction, and for Participants with relatively young mothers.
Reviewing the Options: Noise, Adaptation, and By-Product
This chapter concludes that suicide most likely emerged as a noxious side effect of some other traits that were adaptive overall, despite the concomitant cost of intentional self-killing.
Perceived Burdensomeness And Suicidality: Two Studies On The Suicide Notes Of Those Attempting And Those Completing Suicide
Abstract From an evolutionary-psychological perspective, it has been argued that a sense of burdensomeness toward kin may erode self-preservational motives, which in turn, fosters suicidality. We
Self-Sacrificial Behavior and its Explanation in Terms of Max Scheler’s Concept of Spirit
  • A. Alyushin
  • Philosophy
    Integrative psychological & behavioral science
  • 2014
It is argued that it is human spirit that plays the determinative role in causing heroic and self-sacrificial behavior and that the individual human spirit experiences its inherent development, thus having several rather dissimilar stages and manifestations.
Altruism in suicide terror organizations
In recent years, much has been learned about the strategic and organizational contexts of suicide attacks. However, motivations of the agents who commit them remain difficult to explain. In part this
Perceived Burdensomeness as an Indicator of Suicidal Symptoms
The Interpersonal-Psychological Theory of Suicidal Behavior proposes precursors to serious suicidality, including the perception that one is a burden on loved ones. The purpose of the present study
Does having offspring reduce the risk of suicide in women?
The protective effect offspring confer on their mother against suicide appears to operate so long as the offspring lives at home irrespective of off spring's age, although the protective effect appears to be lost once they leave home.


The genetical evolution of social behaviour. I.
The moulding of senescence by natural selection.
  • W. Hamilton
  • Environmental Science
    Journal of theoretical biology
  • 1966
Suicidal ideation and the residual capacity to promote inclusive fitness: a survey.
It has been argued that suicide relates to a diminished residual capacity to promote inclusive fitness, defined as the welfare and reproduction of self and kin. The present study examined whether
Suicidal ideation and the residual capacity to promote inclusive fitness: a survey.
Expectations of poor future health, perceptions of being burdensome, and unstable heterosexual relationships are among items most strongly related to reported suicidal ideation.
Perceived peer and family relationships, hopelessness and locus of control as factors in adolescent suicide attempts.
Suicide attempters experienced a significantly greater degree of hopelessness than all the non-attempters, and significantly more external locus of control than the controls.
Adaptive suicidal behaviour in pea aphids
Pea aphid parasitized by the braconid wasp Aphidius ervi, exhibit apparent suicidal behaviour in response to both aphid alarm pheromone and approaching coccinellid (ladybird beetle) predators, believed to be the first convincing evidence in support of the host suicide hypothesis.