Audiovisual peduncular hallucinations: a release of cross-modal integration sites?
We report the case of a patient with multiple sclerosis with congruent visual and auditory hallucinations of deceased familiar persons that lasted continuously for several days. Magnetic resonance imaging revealed an isolated, predominantly left-sided lesion in the periaqueductal segment of the mesencephalon. We propose that these hallucinations represent a bimodal variant of classic peduncular hallucinations, brought about by a deregulation of modulatory superior collicular activity and a release of cross-modal integrative functions of the superior temporal sulcus.
Taylor
Kirsten I
KI
Department of Neurology, University Hospital Zürich, Zürich, Switzerland.
Brugger
Peter
P
Schwarz
Urs
U
D000328:Adult; D005260:Female; D006212:Hallucinations / Q000503:physiopathology*; D006801:Humans; D008636:Mesencephalon / Q000473:pathology*; D009103:Multiple Sclerosis / Q000150:complications* / Q000523:psychology*; D013702:Temporal Lobe / Q000473:pathology*