Covariation of pupillary and auditory cortical activity in rats under isoflurane anesthesia

Highlights • Pupil size is positively correlated with spontaneous cortical activation. • Pupil size is negatively correlated with auditory-evoked potentials (AEP). • Stimulus-specific adaptation (SSA) was less dependent on pupil size than AEP. • Non-oscillatory pupil fluctuation has an origin in the...

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Bibliographic Details
Published in:Neuroscience 2015-08, Vol.300, p.29-38
Main Authors: Takahashi, H, Tokushige, H, Shiramatsu, T.I, Noda, T, Kanzaki, R
Format: Article
Language:English
Subjects:
Anesthesia, Inhalation
Anesthetics, Inhalation - pharmacology
Animals
auditory cortex
Auditory Cortex - drug effects
Auditory Cortex - physiology
Auditory Perception - drug effects
Auditory Perception - physiology
auditory-evoked potential (AEP)
Evoked Potentials, Auditory - drug effects
Evoked Potentials, Auditory - physiology
Functional Laterality
isoflurane
Isoflurane - pharmacology
Male
Neurology
Organ Size
Periodicity
pupil
Pupil - drug effects
Pupil - physiology
Rats, Wistar
Reflex, Pupillary - drug effects
Reflex, Pupillary - physiology
spontaneous activity
stimulus-specific adaptation (SSA)
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Summary:Highlights • Pupil size is positively correlated with spontaneous cortical activation. • Pupil size is negatively correlated with auditory-evoked potentials (AEP). • Stimulus-specific adaptation (SSA) was less dependent on pupil size than AEP. • Non-oscillatory pupil fluctuation has an origin in the cortex, rather than in the autonomic system.
ISSN:0306-4522
1873-7544
DOI:10.1016/j.neuroscience.2015.05.004