Merav Ahissar

Professor of Cognitive Neuroscience. Interested in perceptual and statistical learning; dyslexia and autism

[Merav Ahissar @MeravAhissar]

Delighted to update that an exciting TICS opinion paper of Ayelet Gertsovski and me: "Rapid decay of perceptual memory in dyslexia", just came out this week.

[Merav Ahissar @MeravAhissar]

Happy to update: our Autism Research paper published today: "Poor synchronization yet adequate tempo-keeping in adults with autism", Kasten, Jacoby &  Ahissar: ASDs' poor synchronization to external beat stems from reduced online error-correction and not higher internal noise .

[Fuck You I Quit @fuckyouiquit]

Nearly 1 in 4 American households don’t have internet

[Merav Ahissar @MeravAhissar]

We call the task specific, training-induced switch, which allows bypassing capacity limitations of working memory - perceptualization:
https://t.co/B7PHA0ziUs

[Merav Ahissar @MeravAhissar]

@mariachait @AhissarLab Sure - as soon as I have one ....:)
thanks!

[Merav Ahissar @MeravAhissar]

Here is our (T Malinovitch, P Albouy, R Zatorre and me) reply in the coming paper in Cerebral Cortex:
Training allows switching from limited-capacity manipulations to large-capacity perceptual processing

[Merav Ahissar @MeravAhissar]

Can Working memory training have a general impact on our cognitive capacity?
With adaptive training - most people substantially improve in tasks which seem to require online manipulations that exceed human abilities.
What's happening?

[Ahissar Lab for Perceptual Learning @AhissarLab]

New paper by Ayelet Gertsovski and @MeravAhissar published in #JNeurosci! @SfNJournals https://t.co/vUouX4CxkH Here’s a short summary: 1/8

[Merav Ahissar @MeravAhissar]

Happy to update on our upcoming paper (Gertsovski & Ahissar, J Neurosci. 2022) - showing that auditory cortex of people with dyslexia is insensitive to simple sound regularities. It suggests a perceptual basis for reduced learning of repeated stimuli pattern in dyslexia.

[Merav Ahissar @MeravAhissar]

"Slow-update" in autism - previously shown to be an impediment to forming perceptual predictions, now to sensorimotor synchronization - our new paper in Nature Communication - https://t.co/pJK3IbPXzd 😀

[Gal Vishne @neurogal.bsky.social @neuro_gal]

First paper alert 🎉 with @norijacoby (@CompAudition) and @MeravAhissar - using computational modelling of tapping, we show synchronization difficulties in autism are explained by slow updating of internal representations:
https://t.co/eSXl8yfIdH
1/7

[Merav Ahissar @MeravAhissar]

Dissecting the roles of supervised and unsupervised learning in perceptual discrimination judgments https://t.co/1NIW0tpV5C

[Merav Ahissar @MeravAhissar]

Coronavirus epidemiology - how come we know so little? There are thousands of carriers. How come we do not understand the patterns of infections with all the data the carriers have about their whereabouts? How come there is no cross information between the medical and gps stats ?

[Maria Chait (she/her) @mariachait]

Please consider voting for our symposium: "Perception in the face of volatility- how the sensory brain makes sense of rapidly changing environmental statistics" for the upcoming CNS meeting.
https://t.co/sdIGR6dIF6
with #Alireza_Soltani, @MeravAhissar
#FlorentMayniel

[Merav Ahissar @MeravAhissar]

@mariachait sounds promising to very partial me 😀

[Merav Ahissar @MeravAhissar]

Most learning is implicit, learning regularities of the world. But the world is volatile. How sensitive are we to changes in the environment? how do individuals differ in this sensitivity? If interested please vote for our symposium on volatility at #CNS2020 in Boston😀

[Merav Ahissar @MeravAhissar]

Using morphology is reduced in Dyslexia - an example of reduced use of accumulative stimuli statistics - Kimel & Ahissar, Journal of Experimental Psychology: Learning, Memory, and Cognition.

[Merav Ahissar @MeravAhissar]

A link to the 5 min video clip that explains our results and hypothesis regarding dynamics of perceptual inference in:
individuals with typical development, with dyslexia and with autism,
which won the #ERCAdG @ERC_Research:

https://t.co/7fv9NHAClW

[Merav Ahissar @MeravAhissar]

Got ERC advanced to study our hypothesis :

Updating priors quickly, crucial for sensorimotor synchronization and social interactions, is impaired in autism

Accumulating detailed stat (e.g. that of a language) crucial for fast reading, is impaired in dyslexia.

[Merav Ahissar @MeravAhissar]

😀 our new JEP G paper :

Auditory frequency discrimination is correlated with linguistic skills, but its training does not improve them or other pitch discrimination tasks

https://t.co/i6y9Yiq5BW

dissociates correlation from causality in perceptual learning of pitch.

[Merav Ahissar @MeravAhissar]

Last days to submit an abstract to the meeting on Statistical Learning - https://t.co/UBPw5chGg8
hopefully it will be appealing to a broad community using different paradigms and contexts from currently separate disciplines.