We replicate our prior macaque findings (www.nature.com/articles/s41...) and extend them to humans, showing that the beta rhythm is a reliable marker of perceptual decisions. Stay tuned for a review covering this line of work!

In EEG & MEG experiments (n = 82), participants made perceptual decisions in three different tasks:
 • Temporal categorization
 • Delayed match-to-sample
 • Cross-modal discrimination
 Across all, a beta frequency shift in the prefrontal cortex predicted the chosen category.

Another paper out! New research from our lab explores how beta-band activity signals decisions. We show that subtle shifts in beta-band *frequency* signal categorical decision outcomes — a neural signature that generalizes across tasks and species.
➡️ www.cell.com/iscience/ful...

Fluctuations in #AlphaOscillations influence whether we perceive faint stimuli, but how? @joeyzhou.bsky.social @haegenslab.bsky.social &co show that alpha associated with the #visual system modulate sensitivity, while #sensorimotor alpha affects decision criteria @plosbiology.org 🧪 plos.io/4ho3ecR

Here we showed that these two mechanisms co-exist in the human brain! While the visual alpha network modulates sensitivity, the sensorimotor alpha network modulates criterion in perceptual decision-making.

Check out our latest work led by @joeyzhou.bsky.social on alpha oscillatory networks in PLOS Biology!
➡️ journals.plos.org/plosbiology/...
Do ongoing alpha activity fluctuations influence perceptual sensitivity or criterion?

we are recruiting! looking for a postdoc with great electrophys and data analysis skills for a project in collaboration with @jonescompneurolab.bsky.social and @dralexharris.bsky.social to study the role of beta frequency shifts in decision-making.

Read more in our new paper by @joeyzhou.bsky.social, now on bioRxiv!
And here is our prior work trying to understand the same process: www.jneurosci.org/content/41/4...

Low alpha power boosts faint stimulus detection—but how? 🤔 After much head-scratching, we took a network approach and found that different alpha networks play distinct roles: the visual alpha network tunes perceptual sensitivity, while the sensorimotor alpha network shapes decision criteria. 🧠✨

this project will involve electrophys experiments, spectral analysis of EEG and LFP data, and @hnnsolver.bsky.social to model beta dynamics. if you are into oscillations and looking for a postdoc position, please be in touch :)
more info at: nyspi.applicantpro.com/jobs/3675337

we are recruiting! looking for a postdoc with great electrophys and data analysis skills for a project in collaboration with @jonescompneurolab.bsky.social and @dralexharris.bsky.social to study the role of beta frequency shifts in decision-making.

In both species, we find that post-interval ERPs are significantly different between stimuli that were classified as “long” or “short” (while objective duration was the same). Together, our results show that common neural mechanisms support time categorization in primates. ⏱️🧠

New paper out! peerj.com/articles/184...
We asked whether neural mechanisms for time estimation are similar in monkeys and humans. We compared ERPs during a temporal bisection task, in which participants had to determine whether the duration of a time interval was longer or shorter than a prototype.