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dc.contributor.advisorRockland, Kathleen S.en_US
dc.contributor.advisorVaina, Lucia M.en_US
dc.contributor.authorRoth, Alexander Sebastianen_US
dc.date.accessioned2018-09-13T15:11:35Z
dc.date.available2018-09-13T15:11:35Z
dc.date.issued2018
dc.identifier.urihttps://hdl.handle.net/2144/31267
dc.description.abstractSix neuropsychological topics illustrating altered perceptions and illusory beliefs are explored with particular emphasis on the neurobiological underpinnings of such phenomena. The first five topics are phantom limb, out-of-body experiences including depersonalization and near-death experiences, delusions with an emphasis on the effects of psychedelic drugs, autonomic reflex actions including respiration and heartbeat, and virtual reality. The last topic focuses on three disorders impairing perception and cognition, namely, Anton-Babinski, Charles Bonnet, and Diogenes Syndromes. Many of the related neurobiological mechanisms reflect disturbances of both lower-level and multisensory processing along with specific cortical impairments such as at the temporoparietal junction. The latter has been linked, for example, to out-of-body experiences. Similarly, aberrant neural learning and signaling such as that based on synaptic receptor disturbances show how the interplay between lower-level brain activity and that in the prefrontal cortex contributes to delusions. Specific hypotheses set forth to explain these alterations in perception and cognition are reviewed, such as a remapping theory which depicts cortical reorganization in response to synaptic changes mediated by receptors. The effects of these perceptual/cognitive distortions on experiential pleasure/pain and on adaptability are also explored.en_US
dc.language.isoen_US
dc.subjectNeurosciencesen_US
dc.subjectDelusionsen_US
dc.subjectIllusory beliefsen_US
dc.subjectMisperceptionsen_US
dc.subjectOut-of-body experiencesen_US
dc.subjectPhantom limben_US
dc.subjectVirtual realityen_US
dc.titleSelected topics on the neuroscience of altered perceptions and illusory beliefsen_US
dc.typeThesis/Dissertationen_US
dc.date.updated2018-07-24T19:04:53Z
etd.degree.nameMaster of Scienceen_US
etd.degree.levelmastersen_US
etd.degree.disciplineMedical Sciencesen_US
etd.degree.grantorBoston Universityen_US


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