Literature DB >> 11598299

Neuroanatomy of magnetoreception: the superior colliculus involved in magnetic orientation in a mammal.

P Nemec1, J Altmann, S Marhold, H Burda, H H Oelschlager.   

Abstract

The neural substrate subserving magnetic orientation is largely unknown in vertebrates and unstudied in mammals. We combined a behavioral test for magnetic compass orientation in mole rats and immunocytochemical visualization of the transcription factor c-Fos as a marker of neuronal activity. We found that the superior colliculus of the Zambian mole rat (Cryptomys anselli) contains neurons that are responsive to magnetic stimuli. These neurons are directionally selective and organized within a discrete sublayer. Our results constitute evidence for the involvement of a specific mammalian brain structure in magnetoreception.

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Year:  2001        PMID： 11598299     DOI： 10.1126/science.1063351

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  30 in total

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10.  Changing and shielded magnetic fields suppress c-Fos expression in the navigation circuit: input from the magnetosensory system contributes to the internal representation of space in a subterranean rodent.

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