Isabel Raposo
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iraposo.bsky.social
Isabel Raposo
@iraposo.bsky.social
26 followers 34 following 0 posts
PhD student at the Hertie Institute for Clinical Brain Research (
@HelfrichLab) and IMPRS MMFD in Tübingen
Posts Replies Media Videos
Reposted by Isabel Raposo
randolph-helfrich.bsky.social
Aperiodic activity reflects pathological waveforms in epilepsy (and not necessarily hyper-excitability or altered E/I-balance). The 1/f slope goes up *or* down as function of waveforms during seizures. New work by Laura Heidiri and Frank van Schalkwijk from the lab: www.jneurosci.org/content/45/5...
Aperiodic Activity Reflects Pathologic Waveform Shapes in Focal Epilepsy
Epilepsy constitutes a clinically manifest excitability disorder that is characterized by aberrant electrophysiological activity in the electroencephalogram (EEG). The correct identification of the se...
www.jneurosci.org
December 15, 2025 at 1:41 PM
Reposted by Isabel Raposo
cp-neuron.bsky.social
Structure in noise: Recurrent connectivity shapes neural variability to balance perceptual and cognitive demands in the human brain
Does neural variability reflect random noise or a feature that benefits adaptive behavior? Using intracranial recordings in humans, Terlau et al. demonstrate that neural variability results from the recurrent connectivity structure along the cortical hierarchy, which supports the spatiotemporal unfolding from perceptual to cognitive processing.
dlvr.it
November 8, 2025 at 12:09 AM
Reposted by Isabel Raposo
nena-conference.bsky.social
🧠 Last week to sign up for NeNa 2025 in Heidelberg!

The registration covers transport from Tübingen, accommodations, and all meals. Sign up here: nenaconference.github.io

We look forward to meeting you in October!

#NeNa2025 #Heidelberg #Tuebingen #Neuroscience #PhD
August 25, 2025 at 8:05 AM
Reposted by Isabel Raposo
nena-conference.bsky.social
🧠 Let’s talk brains at NeNa 2025 in Heidelberg!

Registration includes transport from Tübingen, accommodation, and meals. Don’t miss out: nenaconference.github.io

#NeNa2025 #Tübingen #Neuroscience #Heidelberg
August 7, 2025 at 9:03 AM
Reposted by Isabel Raposo
plosbiology.org
How does the brain sample the #visual environment in space and time? @iraposo.bsky.social &co show that two distinct temporal patterns (rhythmic oscillations & aperiodic timescales) predict attention-guided behavior @plosbiology.org 🧪 plos.io/3ThTKVy
Behavioral timescales increase when multiple locations are sampled. Left: Schematic of task designs. Participants fixated a central cross and were presented with a cue, which indicated the location participants should covertly attend to. After a variable cue-target interval a target appeared in either the cued or non-cued location and participants responded with a button press. In the first task participants only had to sample two locations, while in the second task, participants had to sample four locations. Second left: demeaned, time-resolved RTs as a function of the cue-target interval for one exemplary participant (two locations: red; four locations blue). Second right: power spectrums with different peak frequencies. Right: the autocorrelation function and the respective timescales.
June 30, 2025 at 3:38 PM