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Re: [AUDITORY] 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

śr., 22 sty 2020 o 06:15 Jacques Pesnot <jacques.pesnot@xxxxxxxxxx> napisał(a):

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).

https://www.biorxiv.org/content/10.1101/834226v1

Best regards, 
Jacques Pesnot Lerousseau.  
De : AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx> de la part de 滕相斌Xiangbin Teng <xiangbin.teng@xxxxxxxxx>
Envoyé : mardi 21 janvier 2020 10:23
À : AUDITORY@xxxxxxxxxxxxxxx <AUDITORY@xxxxxxxxxxxxxxx>
Objet : Re: [AUDITORY] Cortical sources of the auditory steady state response
 

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

 

From: Patel, Aniruddh D.
Sent: Monday, January 20, 2020 1:05 PM
To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Cortical sources of the auditory steady state response

 

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/