Serdar Akkol, MD PhD
@sakkol.bsky.social
PGY4 @uabneurores, PhD'22 @NorthwellHealth, postdoc'19 @StanfordMed, MD'18 Cerrahpaşa, @lindaunobel'18, neurology-neuroscience, epilepsy, iEEG
Would love to listen to you live in the USA! 👍
October 18, 2025 at 4:49 AM
Would love to listen to you live in the USA! 👍
That's lovely. Curious to hear how you say CPS and your style were different and merged. Thank you again! Wondering if you have a post rock playlist you listen?
October 4, 2025 at 3:26 AM
That's lovely. Curious to hear how you say CPS and your style were different and merged. Thank you again! Wondering if you have a post rock playlist you listen?
Thank you for sharing your passion! It's thoughtful and really a joy to listen. It has been a while since hearing post rock in this way. Please continue CPS for us to feel deep and endless happiness of the world on days of darkness. 😌 Would love to hear your post rock playlist as well!
October 3, 2025 at 12:54 AM
Thank you for sharing your passion! It's thoughtful and really a joy to listen. It has been a while since hearing post rock in this way. Please continue CPS for us to feel deep and endless happiness of the world on days of darkness. 😌 Would love to hear your post rock playlist as well!
Learned a lot thanks to my wonderful co-authors, @akashmishra.bsky.social, Noah Markowitz, Elizabeth Espinal, Menoua Keshishian, Charles Schroeder, @nimail.bsky.social and my PhD advisors @stephanbickel.bsky.social and Ashesh Mehta. Happy to discuss more! Here's the free access link:
authors.elsevier.com
September 16, 2025 at 2:24 AM
Learned a lot thanks to my wonderful co-authors, @akashmishra.bsky.social, Noah Markowitz, Elizabeth Espinal, Menoua Keshishian, Charles Schroeder, @nimail.bsky.social and my PhD advisors @stephanbickel.bsky.social and Ashesh Mehta. Happy to discuss more! Here's the free access link:
We believe our findings support the neural entrainment of oscillations during speech perception by acoustic edges. This is just another drop in the bucket of the vast literature on the neural oscillations. There is more to look and much to debate.
a blue background with a white light coming out of it
ALT: a blue background with a white light coming out of it
media.tenor.com
September 16, 2025 at 2:24 AM
We believe our findings support the neural entrainment of oscillations during speech perception by acoustic edges. This is just another drop in the bucket of the vast literature on the neural oscillations. There is more to look and much to debate.
This effect was localized to HG in theta and alpha bands and to STG in theta band only.
September 16, 2025 at 2:24 AM
This effect was localized to HG in theta and alpha bands and to STG in theta band only.
If the phase concentration happened just because of the evoked potential, the 2nd cycle would have gone back to baseline values. However, what we see is that the ITPC stayed higher than the phase concentration happened before the evoked potential.
September 16, 2025 at 2:24 AM
If the phase concentration happened just because of the evoked potential, the 2nd cycle would have gone back to baseline values. However, what we see is that the ITPC stayed higher than the phase concentration happened before the evoked potential.
Focusing on acoustic edges, we looked if the acoustic edge locked phase alignment (inter-trial phase coherence) lasts more than two cycles for events that are at least 800ms apart. We found ITPC lasts 2 cycles of theta band above the phase concentration that happens right before the acoustic edge.
September 16, 2025 at 2:24 AM
Focusing on acoustic edges, we looked if the acoustic edge locked phase alignment (inter-trial phase coherence) lasts more than two cycles for events that are at least 800ms apart. We found ITPC lasts 2 cycles of theta band above the phase concentration that happens right before the acoustic edge.
We initially replicated that both Heschl's gyrus and superior temporal gyrus have cerebro-acoustic coherence with speech in the theta range. But both HG and STG respond to the acoustic edge earlier than acoustic peak. As expected, since acoustic edges lead the acoustic peaks.
September 16, 2025 at 2:24 AM
We initially replicated that both Heschl's gyrus and superior temporal gyrus have cerebro-acoustic coherence with speech in the theta range. But both HG and STG respond to the acoustic edge earlier than acoustic peak. As expected, since acoustic edges lead the acoustic peaks.
We tried to replicate these findings using intracranial EEG as there are several differences between MEEG and iEEG.
Our participants (I don't like calling them patients since they give their best effort and do this for science without return) listened to ~45min of speech stimuli.
Our participants (I don't like calling them patients since they give their best effort and do this for science without return) listened to ~45min of speech stimuli.
September 16, 2025 at 2:24 AM
We tried to replicate these findings using intracranial EEG as there are several differences between MEEG and iEEG.
Our participants (I don't like calling them patients since they give their best effort and do this for science without return) listened to ~45min of speech stimuli.
Our participants (I don't like calling them patients since they give their best effort and do this for science without return) listened to ~45min of speech stimuli.
One elegant way to answer the difference is by looking at the phase alignment after an evoked activity as elegantly proposed by @oganiany.bsky.social et al.
www.jneurosci.org/content/43/2...
www.jneurosci.org/content/43/2...
Phase Alignment of Low-Frequency Neural Activity to the Amplitude Envelope of Speech Reflects Evoked Responses to Acoustic Edges, Not Oscillatory Entrainment
The amplitude envelope of speech is crucial for accurate comprehension. Considered a key stage in speech processing, the phase of neural activity in the theta-delta bands (1-10 Hz) tracks the phase of...
www.jneurosci.org
September 16, 2025 at 2:24 AM
One elegant way to answer the difference is by looking at the phase alignment after an evoked activity as elegantly proposed by @oganiany.bsky.social et al.
www.jneurosci.org/content/43/2...
www.jneurosci.org/content/43/2...
Two hypotheses emerged as potential mechanisms in understanding how we perceive speech:
Neural entrainment of oscillations has amassed much attention due to its flexibility and rich background.
Evoked response hypothesis explains what we see as a combination of ongoing responses to auditory stream.
Neural entrainment of oscillations has amassed much attention due to its flexibility and rich background.
Evoked response hypothesis explains what we see as a combination of ongoing responses to auditory stream.
a man in a suit and tie is standing in front of a handicapped men 's bathroom .
ALT: a man in a suit and tie is standing in front of a handicapped men 's bathroom .
media.tenor.com
September 16, 2025 at 2:24 AM
Two hypotheses emerged as potential mechanisms in understanding how we perceive speech:
Neural entrainment of oscillations has amassed much attention due to its flexibility and rich background.
Evoked response hypothesis explains what we see as a combination of ongoing responses to auditory stream.
Neural entrainment of oscillations has amassed much attention due to its flexibility and rich background.
Evoked response hypothesis explains what we see as a combination of ongoing responses to auditory stream.
Well, good news, one paper got accepted! 🎉 More details soon...
September 5, 2025 at 4:56 AM
Well, good news, one paper got accepted! 🎉 More details soon...