Alireza_Saeedi

from Physics to Complex systems and then Neuroscience.
Computational neuroscience, system neuroscience, visual perception, consciousness

[Neuroscience News @NeuroscienceNew]

“Brightness illusions drive a neuronal response in the primary visual cortex under top down modulation” by Masataka Watanabe et al. Nature Communications

https://t.co/hKZQDjVIgC

3/3

[Neuroscience News @NeuroscienceNew]

Mice Fooled by Optical Illusions: New Insights into Brain Function

Mice are capable of perceiving neon color spreading, a type of visual illusion previously studied only in humans.

The study is the first to use both electrophysiology and optogenetics to examine the illusion's effect on mice.

This research sheds light on which neuronal levels are crucial for processing the perception of brightness, revealing that while the primary visual cortex (V1) reacts to visual stimuli generally, the secondary visual cortex (V2) plays a specific role in enhancing the illusion.

These findings not only demonstrate that mice can be used to study complex perceptual phenomena but also pave the way for further exploration into the neural basis of consciousness and sensory perception.

1/3

[Neuroscience News @NeuroscienceNew]

Mice Fooled by Optical Illusions: New Insights into Brain Function

Mice can experience visual illusions, revealing new layers of brain function! Using electrophysiology and optogenetics, researchers uncover how neurons orchestrate the perception of illusions. A step closer to understanding consciousness?

https://t.co/2Up6YWDIBg

2/2

[Alireza_Saeedi @_arsa67]

@PessoaBrain @NatureComms @watanabemasata @NelsonTotah @BartelsAndreas 👌Some concerns exist when generalizing to primates. For instance, mouse vision, although hierarchical, is less functionally segregated. Thus, mouse V1 shows more complex behavior and processes various visual cues that, in primates, would be handled by several specialized areas.

[Alireza_Saeedi @_arsa67]

Excited that our paper "Brightness illusions drive a neuronal response in the primary visual cortex under top-down modulation" is now published @NatureComms!
https://t.co/rmjUloTsT3
🎉 Great thanks to my coauthors.
@watanabemasata,@NelsonTotah,@BartelsAndreas

[Shervin Safavi @neuroprinciples]

RT is appreciated: We have a fully funded PhD position in CMC lab (at @tudresden_de). You can find more information about the position here:

https://t.co/XwWSPhbPEh

Please email me if you have questions. Deadline is November 30

Find more about CMC lab: https://t.co/z85OIcVTv9

[Cheers to Science! @CheersToScience]

Pint of Science Bonn is brewing... We're very excited to soon share more details with you about the amazing scientists and topics we will have this year! 🍻🔬

Save the date: 22-24.05.23 🤩🥳

#pintofscience #pint23 #pint23bonn #pint23de #team #PoSteam #bonn #science #scicomm

[Jule Schlee @JuleSchlee]

#Bonn scientists - you're wanted. Contact me if you want to present your research at the #PintofScience Festival from 9-11.5.22 (again IN PUBS and NOT online). We want even more events this time :-D

[Katrin Franke @kfrankelab]

You are looking for a PhD/postdoc position & are excited about this kind of work👇?

@sinzlab has an open position! Work together with @AToliasLab myself & a great team on using machine learning tools to better understand the visual system

DM if interested

Pls spread the word🙏

[Alireza_Saeedi @_arsa67]

#HazaraGenocide has been going on for a century!
Thank you, Clare, for being our voice!
#StopHazaraGenocide

[Clare Daly @ClareDalyIRL]

Month after month the people of #Afghanistan suffer and die, incl 53 mainly #Hazara girls last week, a people at risk of #genocide.. And yet the world says & does nothing. What have these people done to deserve this? Time to speak up, to stand up and demand #justice4afghanistan

[Alireza_Saeedi @_arsa67]

#StopHazaraGenocide

[Janali Rezaei @janalirezaei]

Drawal of international troops from Afghanistan, violence against the #Hazara population has escalated. With a long history of persecution, including by the Taliban, the Hazaras are right to fear a genocide.
#StopHazaraGenocide
https://t.co/TL9C5YUElz via @AJEnglish

[Alireza_Saeedi @_arsa67]

#StopHazaraGenocide

[Alireza_Saeedi @_arsa67]

@somayye1254 ❤️❤️❤️❤️

[Alireza_Saeedi @_arsa67]

@watanabemasata Thank you for the great supervision

[Alireza_Saeedi @_arsa67]

We further investigated what types of neurons respond to the NCS illusion in mouse V1 and found an exciting set of results. Please refer to the paper if interested.
Would be happy to receive any feedback or comments.
5/5

[Alireza_Saeedi @_arsa67]

Happy to see my first Ph.D. work is online!
Mouse primary visual cortex neurons respond to the illusory ''darker than black'' in neon color spreading.

Thx to @watanabemasata, @NelsonTotah, @BartelsAndreas, @wiseking12, and Nikos Logothetis for all the help and support.
1/5

[bioRxiv Neuroscience @biorxiv_neursci]

Mouse primary visual cortex neurons respond to the illusory ''darker than black'' in neon color spreading. https://t.co/u0J3KUlHhP #biorxiv_neursci

[Alireza_Saeedi @_arsa67]

A phase shift in the response of neurons to physical vs. illusory grating demonstrates that neurons are indeed responding to the illusory "darker than black."
4/5

[Assaf Breska @AssafBreska]

We’re hiring! fully funded PhD positions @MPICybernetics in cognitive neuroscience and neuropsychology. Interested in timing, prediction, attention and consciousness? And how they rely on (non-)oscillatory dynamics and sub/cortical circuits? Come join us! https://t.co/LyfpZphY4B