BOTTOMUP HYPOTHESIS

   A generic name for a group of hypotheses that attribute the mediation of hallucinations primarily to a disorder of the data-driven processing of perceptual information, such as may occur in the context of * deafness, * blindness (i.e. the * Charles Bonnet syndrome), *sensory deprivation, or dysfunction of the primary sensory cortex. The term bottom-up hypothesis is used in opposition to the term * top-down hypothesis. The latter term refers to a group of hypotheses that attribute the mediation of hallucinations primarily to a disorder of the conceptual processing of perceptual information.

   References

   Aleman, A., Laroi, F. (2008). Hallucinations. The science of idiosyncratic perception. New York, NY: American Psychological Association.