Neurometric amplitude‐modulation detection threshold in the guinea‐pig ventral cochlear nucleus

Key points •  Amplitude modulation (AM) is a key information‐carrying feature of natural sounds. The majority of physiological data on AM representation are in response to 100%‐modulated signals, whereas psychoacoustic studies usually operate around detection threshold (∼5% AM). Natural sounds are c...

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Bibliographic Details
Published in:The Journal of physiology 2013-07, Vol.591 (13), p.3401-3419
Main Authors: Sayles, Mark, Füllgrabe, Christian, Winter, Ian M.
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Action Potentials
Animals
Cochlear Nucleus - physiology
Ears & hearing
Guinea Pigs
Neurons
Neuroscience: Behavioural/Systems/Cognitive
Physiology
Signal processing
Sound
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Summary:Key points •  Amplitude modulation (AM) is a key information‐carrying feature of natural sounds. The majority of physiological data on AM representation are in response to 100%‐modulated signals, whereas psychoacoustic studies usually operate around detection threshold (∼5% AM). Natural sounds are characterised by low modulation depths ( primary‐like (PL). Spike synchrony increased with increasing modulation depth. At the lowest modulation depth (6%), significant spike sy
ISSN:0022-3751
1469-7793
DOI:10.1113/jphysiol.2013.253062