@MeravAhissar profile picture
Merav Ahissar @MeravAhissar

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

Joined August 2016
  • Tweets 21
  • Following 13
  • Followers 161
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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.
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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 .
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Merav Ahissar retweeted
Fuck You I Quit
@fuckyouiquit
28 Aug 2022
Nearly 1 in 4 American households don’t have internet
Rodentia@Rodentmoment
28 Aug 2022
Replying to @fuckyouiquit
Who doesn't have internet access lol
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We call the task specific, training-induced switch, which allows bypassing capacity limitations of working memory - perceptualization: academic.oup.com/cercor/adva…

Training allows switching from limited-capacity manipulations to large-capacity perceptual proces...

Abstract. In contrast to perceptual tasks, which enable concurrent processing of many stimuli, working memory (WM) tasks have a very small capacity, limiti

academic.oup.com
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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
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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?
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Merav Ahissar retweeted
Ahissar Lab for Perceptual Learning@AhissarLab
21 Feb 2022
New paper by Ayelet Gertsovski and @MeravAhissar published in #JNeurosci! @SfNJournals jneurosci.org/content/42/7/1… Here’s a short summary: 1/8

Reduced Learning of Sound Categories in Dyslexia Is Associated with Reduced Regularity-Induced...

A main characteristic of dyslexia is poor use of sound categories. We now studied within-session learning of new sound categories in dyslexia, behaviorally and neurally, using fMRI. Human participa...

jneurosci.org
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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.
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"Slow-update" in autism - previously shown to be an impediment to forming perceptual predictions, now to sensorimotor synchronization - our new paper in Nature Communication - x.com/neuro_gal/status/14381… 😀

Gal Vishne @neurogal.bsky.social@neuro_gal
15 Sep 2021
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: nature.com/articles/s41467-0… 1/7
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Dissecting the roles of supervised and unsupervised learning in perceptual discrimination judgments jneurosci.org/content/early/…
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 ?
Merav Ahissar retweeted
Maria Chait (she/her)@mariachait
12 Nov 2019
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. surveymonkey.com/r/BLK53PX with #Alireza_Soltani, @MeravAhissar #FlorentMayniel

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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😀
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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.
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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: youtu.be/7jvNmbtNrO0

New surprising results shed light on Autism and Dyslexia | Itay...

Short narrated description of our latest publication in Nature Neur...

youtube.com
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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.
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😀 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 psycnet.apa.org/fulltext/201… dissociates correlation from causality in perceptual learning of pitch.

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Last days to submit an abstract to the meeting on Statistical Learning - bcbl.eu/events/statistical-l… hopefully it will be appealing to a broad community using different paradigms and contexts from currently separate disciplines.

Statistical Learning 2026

bcbl.eu
#myfirstTweet Very proud to have my first twit on our Jan 2019 NN paper: Perceptual bias reveals slow-updating in autism and fast-forgetting in dyslexia. nature.com/articles/s41593-0… 1 min video clip: dropbox.com/sh/ds10fvhmimi03…
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