Petar Raykov
@praykov.bsky.social
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📥 88
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Cognitive Neuroscientist interested in memory and aging
https://www.petarraykov.com/
reposted by
Petar Raykov
Dominika Varga
2 months ago
So happy to share our paper on the role of the hippocampus as a mismatch detector:
doi.org/10.1073/pnas...
We show that the hippocampus detects mismatches between ongoing experiences and episodic memories but not generalised schematic knowledge. See 🧵for how we got here:
#neuroskyence
#PsychSciSky
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reposted by
Petar Raykov
MRC Cognition and Brain Sciences Unit, University of Cambridge
2 months ago
New fMRI study shows the hippocampus signals mismatches only when our expectations are based on episodic memories — not general knowledge. Challenges theories of the hippocampus as a domain-general comparator. We also explore how brain networks respond to surprise:
doi.org/10.1101/2025...
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reposted by
Petar Raykov
Cam-CAN
2 months ago
New CamCAN study led by
@praykov.bsky.social
used 11 different white matter (WM) measures to show that WM health is multidimensional: 4 latent MRI-derived factors explained 89% of WM variance, were predicted by vascular health, and predicted cognition:
doi.org/10.1038/s415...
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Complementary MR measures of white matter and their relation to cardiovascular health and cognition - Scientific Reports
Scientific Reports - Complementary MR measures of white matter and their relation to cardiovascular health and cognition
https://doi.org/10.1038/s41598-025-13610-2
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We recently published a new paper investigating APOE effects in Cam-CAN
@camcan-2010.bsky.social
movie dataset. Examining various measures we failed to find any APOE effects in healthy individuals. You can read more about it in the paper
doi.org/10.1177/2398...
or the thread below
9 months ago
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reposted by
Petar Raykov
Edwin Dalmaijer
11 months ago
Would you like to learn Python to create experiments and do analyses? BUY OUR BOOK!
www.routledge.com/products/978...
This is a new edition for Python 3, with
#PsychoPy
chapters by
@hirstrj.bsky.social
and
@peircej.bsky.social
from
@psychopy.org
#cogneuro
#psychology
#Python
#programming
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Python for Experimental Psychologists: A Fun Way of Learning How to Code Your Experiments and Analyses
Python for Experimental Psychologists equips researchers who have no prior programming experience with the essential knowledge to independently script experiments and analyses in the programming langu...
https://www.routledge.com/products/9781032000459
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reposted by
Petar Raykov
Rik Henson
almost 2 years ago
Join us for another two weeks of Cognitive Neuroimaging Skills Training In Cambridge,
#COGNESTIC
, 16-27 September, 2024. We provide training in state-of-the-art methods for open neuroimaging analysis, focussing on MRI, fMRI and EEG/MEG.
www.mrc-cbu.cam.ac.uk/events/cogne...
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cognestic-2024
https://www.mrc-cbu.cam.ac.uk/events/cognestic-2024
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reposted by
Petar Raykov
Aidan Horner
over 1 year ago
Very excited that
@akulsatish.bsky.social
's MEG paper on spatial representations and theta/alpha is officially published in Hippocampus! Theta and alpha oscillations in human hippocampus and medial parietal cortex support the formation of location-based representations
#neuroskyence
#psychscisky
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Theta and alpha oscillations in human hippocampus and medial parietal cortex support the formation of location‐based representations
Hippocampus is an international neuroscience journal exploring the hippocampal formation and its interactions with other brain regions.
https://onlinelibrary.wiley.com/doi/full/10.1002/hipo.23605
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reposted by
Petar Raykov
Laura Ana Bustamante, PhD
almost 2 years ago
I'm elated to share my PhD keystone paper published @PNAS
www.pnas.org/doi/10.1073/...
I've poured my heart & soul into this project since 2016 (8 yrs!) & I'm happy to introduce the Effort Foraging Task to the world
#CognitivePsychology
#Motivation
#Effort
#Foraging
#DecisionMaking
🧵
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reposted by
Petar Raykov
Alexa Morcom
almost 2 years ago
PhD funding alert! A second round of up to 4 School of UK + International Psychology studentships at Sussex this year - deadline 15th Feb. Application FAQ:
t.ly/ZLoEJ
- contact potential supervisor/s first to check fit! For my lab, episodic memory + ageing
#neuroskyence
#cognition
#psychscisky
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Check out our new paper showing that functional system segregation in fMRI predicts fluid intelligence, but does not meditate the benefits midlife activities have on late life intelligence
doi.org/10.1016/j.ne...
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Redirecting
https://doi.org/10.1016/j.neurobiolaging.2023.11.009
almost 2 years ago
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reposted by
Petar Raykov
Norman Lab
about 2 years ago
Now out in Cognitive Science! We use GPT-2 to show that Bayesian surprise, which tracks changes in the content and confidence of predictions, accounts for human event boundaries in a narrative better than surprisal, which only tracks the predicted probability of individual words
tinyurl.com/kd9dpub8
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