Anahit Mkrtchian

Researcher at the Applied Computational Psychiatry lab @UCL

[Anahit Mkrtchian @AnahitMkr]

✨New preprint out✨
We examined motivational dysfunction in depression, aiming to dissect which cognitive processes drive impaired effort-based decision making. Through an extensive computational analysis - by the expert @vincentvalton🧠💫- we find a somewhat surprising answer👇

[Lennart Luettgau @LLuettgau]

Excited to share our brand-new work shedding some light on the neural mechanisms behind one of human’s coolest cognitive feats: compositional generalization of structural knowledge!
A Tweeprint-Thread 🧵
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[Anahit Mkrtchian @AnahitMkr]

A huge thanks to everyone involved!

This work was a massive team effort led by the amazing @vincentvalton & @jonroiser, with @maddyempayne, Alan Gray, @karelkieslich, Samantha VanUrk, @nikasamborska, @chalahakoon, @BrainInTheMind, Peter Dayan & @MasudHusain!! 🌟

[Anahit Mkrtchian @AnahitMkr]

✨New preprint out✨
We examined motivational dysfunction in depression, aiming to dissect which cognitive processes drive impaired effort-based decision making. Through an extensive computational analysis - by the expert @vincentvalton🧠💫- we find a somewhat surprising answer👇

[Anahit Mkrtchian @AnahitMkr]

Check out the preprint for all the juicy details! 📖👉https://t.co/oB5JBjW9bi

[Dr Alex Pike @Alexandra_Pike]

Catastrophizing paper alert 🚨! We (Mia Harada-Laszlo, @AniTalwar, and @olijrobinson) tested whether catastrophizers responded differently to things 'going wrong' - i.e. if they received 'a series of unfortunate events' (or negative outcomes) https://t.co/6IYxugVd1T

[Toby Wise @toby_wise]

🌟New paper online in @TrendsCognSci with @angelaradulescu & Kara Emery 🌟

We review work taking an approach we refer to as "naturalistic reinforcement learning", which uses more naturalistic approaches to study learning and decision-making.

https://t.co/AGoK610xl5

[Lennart Luettgau @LLuettgau]

As promised, here’s the summary thread🧵:
The study presented in this preprint investigates how humans decompose dynamical subprocesses and leverage the abstracted subprocesses for compositional reuse of experience in new situations.
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[Salman Qasim @QasimEtal]

Excited to share my new collaboration with Lukas Kunz (@lks_kunz ) in which we show that neurons in the human brain encode 2D positions in space....

an emotion space, that is, defined by valence and arousal!

And, they do it, dare I say, in a grid-like pattern?

[Harry Costello @Harry_Costello]

How do antiparkinsonian #medications effect different symptom dimensions of #depression in #Parkinson's disease?

📢📢 Check out our (@jonroiser @ProfRobHoward @a_schrag) new preprint! 🚨🚨

Link: https://t.co/lVJMqgQgAi

[Dr Alex Pike @Alexandra_Pike]

My first senior-author paper is properly out! (open access: https://t.co/H3vgi3mNlf). This is some work that Ashley Slanina-Davies (not on twitter) led during her MSci project @UCL_ICN, supervised by me and other co-senior-author @olijrobinson. 🧵

[Anahit Mkrtchian @AnahitMkr]

@nessambrown @Sam_D_Parsons @AlisaLoosen @HedgeCraig @Nate__Haines sorry i should've specified, test-retest on mean accuracy (time point 1 and time point 2)

[Anahit Mkrtchian @AnahitMkr]

@Sam_D_Parsons @AlisaLoosen @HedgeCraig @Nate__Haines if we just want to calculate the ICC of a model-agnostic behavioural task measure that is based on the mean of multiple trials, eg mean accuracy, should you use single or average ICC? and why/why not :)

[Agnes Norbury @AgnesNorbury]

Really excited to share our new preprint where we try and demonstrate that investing effort in creating reliable and acceptable measures can help us tease apart which cognitive processes are targeted by different elements of cognitive-behavioural therapies https://t.co/Lo9GjNZHQu

[Jolanda @JolandaMalamud]

👋New preprint on dynamical mechanisms of psychotherapy! ➡️https://t.co/EhITR6UANQ Joint work with @docqhuys at @MPC_CompPsych / @UCLPsychiatry. 🧵below 👇 1/10