iiinova — where your digital self keeps evolving

I don't think so, I feel we know little to extrapolate this type of decision back to animal models... but worth a discussion

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12/n Finally, the identified processing characteristics also help understand why we lose consciousness when falling asleep, since it shows the dynamics of neural information changes differs between states.

elmo from sesame street standing in front of a wooden door

ALT: elmo from sesame street standing in front of a wooden door

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11/n Take homes: -amplitude of ERPs, or they differences, is not a valid indicator of information processing in the brain -co-I analyses yielded that especially redundant information extended over greater latencies during sleep compared to wakefulness (cont)

a r.e.m. out of time poster with a yellow and pink background

ALT: a r.e.m. out of time poster with a yellow and pink background

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10/n This change in stim processing is reflected in the loss of consciousness during sleep. In other words, the lower consciousness levels during sleep may be explained as informationally weaker and poor states regarding their external stimuli processing capabilities.

a woman says sleep tight you ve got data

ALT: a woman says sleep tight you ve got data

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9/n So, using co-I analyses we show, that the deeper the NREM sleep, the more redundant the processing became, with REM sleep being similar to N1. Deeper sleep was associated with less differentiated processing: the brain simply processed “more of the same information”.

a little boy is sitting at a desk with his hand on his chin and waiting for more information .

ALT: a little boy is sitting at a desk with his hand on his chin and waiting for more information .

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8/n (before discussion) if you want to understand better the implementation of the information theory framework for neural/cognition check this led by @canalesjohnson

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7/n We found that Mutual information decreases with sleep stage and co-information redundancy increases. While the amplitude differences in the ERPs tended to increase as a function of sleep depth (REM similar to N1), the effect sizes tend to decrease when computed with MI.

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6/n Then we found that temporal generalisation pattern generalise from N2 to N3 but not from awake to sleep stages, they don't tell us about the information flavour and hence lack interpretability.

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5/n We found a reliable local mismatch effect during wakefulness and all sleep stages (i.e., N1, N2, N3, REM) with the waveform substantially changing from wakefulness to sleep. Different from an earlier one from Strauss et al www.pnas.org/doi/10.1073/... where there was little MMN in MEG.

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4/n We here present the tone-pattern expectation violation to participants in wake and every sleep stage. If you want to know a bit more about the experiment from a circadian and physiological perspective, check the previous paper pubmed.ncbi.nlm.nih.gov/35998110/

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3/n This is a global-local study (Bekinschtein et al 2009 pubmed.ncbi.nlm.nih.gov/19164526/ on sleep with true analyses of information processing. Check the pre-registration if you are geeky. or carry on reading... osf.io/m23eh/?view_...

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2/N First, let us see the poses of the serious people involved in this work, including one of mine... because why not!?

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Tristan B @trisbek.bsky.social · 10/12/2024

How does information processing during sleep really change? Brain activity might be higher but brain information is lower and redundant. Great and early discussions with Christine Blume and wonderful work from @Andrés Canales-Johnson conceptual and methodological analysis.

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🚵 How does arousal level affect cognition? we show that cognitive control is preserved during sleepiness and intense exercise, but decision-making slows down while sleeping, and attentional focus improves while cycling. cimcyc.ugr.es/en/informati... Data and paper open in the osf.io/uvq3m/

cimcyc.ugr.es

Do natural fluctuations in arousal modulate cognitive control and decision-making?

Throughout the day, people experience a series of natural fluctuations in our level of physical arousal. These changes in our physiological state, ranging from deep sleep to physical exhaustion, appea...

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Tristan B @trisbek.bsky.social · 14/11/2024

I would like to be added, please 🙏?

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Tristan B @trisbek.bsky.social · 13/11/2024

👋 blue-sky people, I am coming back after 1 year... I hope this becomes good.

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Reposted by Tristan B

Ketan Joshi @ketanjoshi.co · 20/11/2023

this is a bloody great name for a climate report www.unep.org/resources/em...

Broken Record
Temperatures hit new highs, yet world fails to cut emissions (again)
UN
environment programme
。

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Reposted by Tristan B

Andrew D Wilson @adw.bsky.social · 09/11/2023

We have 4x Graduate Teaching Assistant positions (PhD with some teaching for the stipend) here in Psychology; I'm advertising a perception-action project, but there's plenty of other topics. Deadline Monday 27th November 2023

jobs.ac.uk

Graduate Teaching Assistant in Psychology at Leeds Beckett University

Recruiting now: Graduate Teaching Assistant in Psychology on jobs.ac.uk. Click for details and explore more academic job opportunities on the top job board

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Reposted by Tristan B

Danyal Akarca @danakarca.bsky.social · 07/11/2023

We have x4 Postdoc positions @ Cambridge, @ the fantastic MRC Cognition & Brain Sciences Unit, working on exciting comp neuro, imaging and NeuroAI projects… w/ @duncanastle.bsky.social, Petra Vertes + others! Link here: jobs.cam.ac.uk/job/43796/ If you have any questions, hmu! (Do plz share!)

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14/15 CRPS and other chronic pain conditions are highly variable, and we need the development of personalized methods if we want to better define the relationship between neural and experience data in chronic pain, as well as develop new therapeutic avenues. (Heather Sarit)

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13/15 Using long-term phenomenal and neurophysiological measurements in an ecological setting we attain single participant power. This new method to investigate chronic pain better samples phenomenal experience with a pseudo-continuous measure, overriding one-time Likert scales

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12/15 The "other" limb pain traces neurally mapped to alpha and theta, while when attending to the pain-limb or other aspects of the body the neural process may be more complex, probably mapping into brain communication, complexity or network measures. (from John Washinton)

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11/15 pain + correlated with - and + emotion and lack of limb ownership when focusing on his heartbeat. - correlated with + emotion and bodily changes when focusing on breathing. Perceived pain intensity varies depending on attentional focus, even within interoceptive conditions

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10/15 pain intensity increases attending to painful limb, and decreases when the other limb is attended. Importantly, our results provide proof-of-principle that attention might induce pain relief when the focus is on one’s own breathing or heartbeat. Paint by Donatella Marraoni

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9/15 Interestingly, alpha and theta power correlate with the traces of pain when the focus is on the non-affected limb, but not when attention focuses on the painful limb. This suggests that neural processing depends on the focus of attentions!

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8/15 we also saw neural differences in brain spectral power between conditions, point to the possible neural info to define the focus and its relation to pain.

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7/15 further showing the strength of the Method we did a series of correlations to see the relationship between pain traces each day and some of the other relevant dimensions of experience. We separated them by focus of attentions time sections.

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