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brain rhythms lab @haegenslab.bsky.social · 18/09/2026

In this MEG study we used ICA to identify two functionally distinct alpha components that are differentially modulated by attention and show opposite relationships with behavioural performance — highlighting the importance of disentangling overlapping alpha dynamics that stem from different sources!

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brain rhythms lab @haegenslab.bsky.social · 06/11/2025

New preprint out! In this opinion paper, we review our recent work showing that frontal beta frequency shifts signal categorical decisions. We propose that the observed frequency modulations emerge from the recruitment of distinct neural ensembles when different (categorical) decisions are made.

arxiv.org

Beta frequency shifts in decision making: Spectral fingerprints or communication channels?

Recent evidence suggests that beta-band activity plays a key role in decision-making. Here we review our recent work in humans and non-human primates showing that beta-band frequency shifts in frontal...

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brain rhythms lab @haegenslab.bsky.social · 27/10/2025

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...

cell.com

Beta-band frequency shifts signal decisions in human prefrontal cortex

Beta-band synchronization has been found to be content-specific, particularly during decision-making. Recently, we showed a beta-band frequency shift in macaque prefrontal cortex to reflect categorica...

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Reposted by brain rhythms lab

PLOS Biology @plosbiology.org · 27/10/2025

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

For each state (of states 1-4), the spatial distribution of power and coherence were estimated for frequencies between 1 and 45 Hz. In each panel, the power map (top left) shows group-averaged power, relative to the mean across states. The coherence network (bottom) shows the top 98% coherence with colored lines, and centers of each parcel with black dots. The PSD graph (top right) shows both the state-specific (colored solid line) and static PSD (i.e., the average across states, black line).

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Reposted by brain rhythms lab

brain rhythms lab @haegenslab.bsky.social · 13/03/2025

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.

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brain rhythms lab @haegenslab.bsky.social · 16/03/2025

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. 🧠✨

biorxiv.org

Distinct Alpha Networks Modulate Different Aspects of Perceptual Decision-Making

Why do we sometimes perceive a faint stimulus but miss it at other times? One explanation is that conscious perception fluctuates with the brains internal state, influencing how external stimuli are p...

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brain rhythms lab @haegenslab.bsky.social · 13/03/2025

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brain rhythms lab @haegenslab.bsky.social · 30/11/2024

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.

peerj.com

Common neural mechanisms supporting time judgements in humans and monkeys

There has been an increasing interest in identifying the biological underpinnings of human time perception, for which purpose research in non-human primates (NHP) is common. Although previous work, ba...

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