Rainbow:
I just read the Wikipedia article about conspiracy theories and man i am pissed off. But read for yourself:
http://en.wikipedia.org/wiki/Conspiracy_theory
The term conspiracy theory is used by mainstream scholars and in popular culture to identify a type of folklore similar to an urban legend, especially an explanatory narrative which is constructed with particular methodological flaws.[2] The term is also used pejoratively to dismiss claims that are alleged by critics to be misconceived, paranoid, unfounded, outlandish, irrational, or otherwise unworthy of serious consideration. For example Conspiracy nut and conspiracy theorist are used as pejorative terms. Some whose theories or speculations are labeled a conspiracy theory reject the term as prejudicial.
Psychological origins
According to some psychologists, a person who believes in one conspiracy theory is often a believer in other conspiracy theories and conversely for a person who does not believe in one conspiracy theory there is a lower probability that he, or she, will believe in another one.[11] This may be attributable to differences in the information upon which parties rely in formulating their conclusions. Thus, a person who believes in a particular conspiracy theory may do so because of awareness of information which is not shared by those that disbelieve the conspiracy theory. In turn, awareness of such information may be correlated with awareness of other information which increases the likelihood that one will believe in other conspiracy theories. Conversely, the lack of awareness of such information may be correlated with the lack of awareness of other information which decreases the likelihood that one will believe in other conspiracy theories.
Psychologists believe that the search for meaningfulness features largely in conspiracism and the development of conspiracy theories. That desire alone may be powerful enough to lead to the initial formulation of the idea. Once cognized, confirmation bias and avoidance of cognitive dissonance may reinforce the belief. In a context where a conspiracy theory has become popular within a social group, communal reinforcement may equally play a part.
Evolutionary psychology may also play a significant role. Paranoid tendencies are associated with an animals ability to recognize danger. Higher animals attempt to construct mental models of the thought processes of both rivals and predators in order to read their hidden intentions and to predict their future behavior. Such an ability is extremely valuable in sensing and avoiding danger in an animal community. If this danger-sensing ability should begin making false predictions, or be triggered by benign evidence, or otherwise become pathological, the result is paranoid delusions.
And there is much more in this article:
* paranoia
* denial
* schizophrenia
* mean world syndrome
* Many theories - including conspiracy theories - rely on the assumption of rational expectations. Under this assumption, events and decisions are explained by the rational responses of groups and individuals.
* However, Allison pointed out that groups and individuals do not always act in a rational manner.
* Allison argued that by using rationalistic thinking, individuals automatically take a black box approach to problems, meaning that they concentrate on data that was available and the results, but failed to consider other factors, such as bureaucracy, misunderstandings, disagreements, etc.
* Finally, Allison argued that rationalistic thinking in general violates the scientific law of falsifiability, as according to the rationality theorem, there exists no event or groups of events that cannot be explained in a rational and purposeful manner.