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Dear list
For those of you interested in the FFR, see the following for a very recent review/consensus piece:
Coffey, E.B., Nicol, T., White-Schwoch, T., Chandrasekaran, B., Krizman, J., Skoe, E., Zatorre, R.J. and Kraus, N., 2019. Evolving perspectives on the sources of the frequency-following response. Nature communications, 10(1), pp.1-10.
available at:
Best wishes
Robert
Robert Zatorre
Montreal Neurological Institute
McGill University
514-398-8903
fax: 514-398-1338
www.zlab.mcgill.ca
From: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx> on behalf of Malina Szychowska <mszychowska@xxxxxxxxx>
Sent: January 22, 2020 9:43 AM
To: AUDITORY@xxxxxxxxxxxxxxx <AUDITORY@xxxxxxxxxxxxxxx>
Subject: Re: Cortical sources of the auditory steady state response
Dear Jacques, and the whole list
It seems like the 60/80 Hz you wrote about is the FFR. I am not sure, but the way I understand the literature is that the ASSRs are not really the same thing as FFR. The FFR is the response to the base frequency of the signal, whereas ASSRs follow the
envelope (or amplitude modulation, or click rate, etc).
Is my understanding incorrect?
This is a very interesting topic to me so I would like to know if I got that correctly or not :)
Best wishes
Malina
Dear Ani Patel,
We have one recent paper - not accepted yet - with B. Morillon and D. Schön on the topic. With sEEG + MEG, we have shown cortical sources
for ~ 60/80 Hz oscillatory responses distributed throughout the cortex : auditory cortex but also up to inferior frontal and motor cortical regions (see Figure 1).
Best regards,
Jacques Pesnot Lerousseau.
Dear Ani,
Our two recent papers may be relevant to your question, though not specifically on this issue. The data suggested that the sources are in auditory cortex.
Concurrent temporal channels for auditory processing: Oscillatory neural entrainment reveals segregation of function at different scales
https://journals.plos.org/plosbiology/article?id=10.1371%2Fjournal.pbio.2000812
Theta and Gamma Bands Encode Acoustic Dynamics over Wide-Ranging Timescales
https://academic.oup.com/cercor/advance-article-abstract/doi/10.1093/cercor/bhz263/5637582
Best regards,
Xiangbin
Sent from
Mail for Windows 10
Dear List,
Can anyone point me to recent work on cortical sources of the ~40 Hz auditory steady state response?
Some older papers argue that the sources are in auditory cortex, while others argue that there are multiple sources in different parts of the cortex, e.g.,:
https://link.springer.com/article/10.1023/A:1021470822922
https://www.sciencedirect.com/science/article/pii/S0378595504004009
I’m curious what the latest research suggests.
Thanks,
Ani Patel
Aniruddh D. Patel
Professor, Dept. of Psychology, Tufts University
CIFAR Fellow, Azrieli Program in Brain, Mind, & Consciousness
http://ase.tufts.edu/psychology/people/patel/
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