title: Spatiotemporally varying visual hallucinations: II. Spectral classification and comparison with theory.
abstract: In order to better understand the nature of visual hallucinations, and to test predictions of spatiotemporally oscillating hallucinations from a recent corticothalamic model of visual dynamics, clinical descriptions of hallucinations are used to establish boundaries on the spatiotemporal frequencies observed in various disorders. Detailed comparisons with hallucinations during migraine aura demonstrate that key features are consistent with corticothalamic origin and specific abnormalities, but underline the need for more detailed quantitative data to be obtained on temporally oscillating hallucinations more generally.
authors.affiliation: School Of Physics, The University Of Sydney, Sydney, New South Wales 2006, Australia; Brain Dynamics Center, Westmead Millennium Institute, The University Of Sydney, Westmead, New South Wales 2145, Australia.
authors.forename: H
authors.initials: H
authors.lastname: Henke
authors.affiliation: School Of Physics, The University Of Sydney, Sydney, New South Wales 2006, Australia; Brain Dynamics Center, Westmead Millennium Institute, The University Of Sydney, Westmead, New South Wales 2145, Australia; Center for Integrative Brain Function, University of Sydney, New South Wales 2006, Australia; Center for Integrative Research and Understanding of Sleep, 431 Glebe Point Rd., Glebe, New South Wales 2037, Australia; Cooperative Research Center for Alertness, Safety, and Productivity, University of Sydney, New South Wales 2006, Australia; Neurosleep, 431 Glebe Point Rd., Glebe, New South Wales 2037, Australia. Electronic address: robinson@physics.usyd.edu.au.
authors.forename: P A
authors.initials: PA
authors.lastname: Robinson
authors.affiliation: School Of Physics, The University Of Sydney, Sydney, New South Wales 2006, Australia; Brain Dynamics Center, Westmead Millennium Institute, The University Of Sydney, Westmead, New South Wales 2145, Australia.
authors.forename: P M
authors.initials: PM
authors.lastname: Drysdale
mesh_terms: D002540:Cerebral Cortex / Q000503:physiopathology*; D006212:Hallucinations / Q000503:physiopathology*; D006801:Humans; D008959:Models, Neurological; D013788:Thalamus / Q000503:physiopathology*
keywords: Migraine aura; Model; Neural field theory; Oscillations