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Mel Sharpe

@melissajsharpe

Associate Professor, University of Sydney πŸ‡¦πŸ‡Ί UNSW | NIDA/Princeton | UCLA | USyd Neuroscience, Prefrontal Cortex, Dopamine, Lateral Hypothalamus, Reinforcement Learning, Wine. (She/Her).

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06.10.2023
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Latest posts by Mel Sharpe @melissajsharpe

🚨 Proposals for @sfn.org Jan 21st 🚨

I’ve only been on the programming committee led by @nictritsch.bsky.social for a short time but already impressed with the vision for 2026 & @sfn.org’s service to our 🧠 community.

This is a grear year to support @sfn.org & contribute to a smashing meeting! πŸ§ͺ

05.01.2026 22:14 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Thanks for all your support!!!

09.12.2025 02:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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two men are standing next to each other in front of a refrigerator . ALT: two men are standing next to each other in front of a refrigerator .

Over the moon to receive the happy news that I’m promoted to Associate Professor @sydney.edu.au! πŸŽ‰

Took a bit of a detour around the 🌎 to get here but worth the wait.

So grateful for all the hard work from folks in the lab, my mentors, and letter writers who made it possible ❀️ 🧠 πŸ§ͺ

08.12.2025 20:10 πŸ‘ 95 πŸ” 1 πŸ’¬ 13 πŸ“Œ 0

How do the stats relate to # of submissions?

25.11.2025 00:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

Yay!! So glad you liked it. And congrats on the paper! It really is an amazing piece of work.

20.11.2025 22:44 πŸ‘ 2 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

LOVED this paper from @constantinoplelab.bsky.social showing how estrogen modulates reinforcement learning in @natureportfolio.nature.com

Was also stoked to write the commentary for this paper with our superstar postdoc Masa Taira.

Check it out πŸ‘‡ 🧠πŸ§ͺ

20.11.2025 22:21 πŸ‘ 27 πŸ” 5 πŸ’¬ 2 πŸ“Œ 0

@sfn.org

17.11.2025 15:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Good morning everyone! Suitably following the #dopamine dinner, we have our #dopamine symposium at 9:30am in SDCC room 6B!

β€˜Beyond Value: Non-canonical roles for dopamine in aversion and reward’

Come join us! 🧠 πŸ§ͺ

17.11.2025 15:32 πŸ‘ 9 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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Pretty special dinner @sfn.org with these glorious women last night 🀩 ❀️

How do I have a job where I travel around the world and hang out with awesome people?

@moriel-z.bsky.social @denisejcai.bsky.social @ladenardo.bsky.social @neurrriot.bsky.social @bjmarlin.bsky.social @debiaselm.bsky.social

16.11.2025 18:29 πŸ‘ 21 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Full house for @earlkmiller.bsky.social’s Presidential Lecture @sfn.org tonight! I had to sneak in 🀫 inspiring to hear about the amazing work that drove my PhD thesis and so much more beyond 🀩

16.11.2025 01:59 πŸ‘ 19 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yes! That would be fab! I have some time before dopamine social
at 8 tomorrow?

16.11.2025 01:30 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Folks the Sharpe Lab are in the house for @sfn.org! πŸŽ‰ Come check out our talks and posters. We’ve been doing some cool stuff down under πŸ‡¦πŸ‡Ί on dopamine, reinforcement learning, and remapping of the fear circuit. 🧠 πŸ§ͺ

14.11.2025 23:25 πŸ‘ 28 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Awesome, congrats! Will take a look!

11.11.2025 20:31 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Would be cool to see how the differences track with projection profiles of VTA DA neurons.

22.10.2025 08:05 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thanks for the shout out, Poppy 😊 Lots of recent data cannot be accommodated by a theory arguing dopamine is only movement. They seem like they’re in quite a different place in VTA from where we and others have conducted recent work. Could suggest the medial posterior VTA subserves movement?

22.10.2025 08:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Awesomeβ€” thanks, Keri!

06.10.2025 22:23 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thanks, Brianna. Do you also feel MATLAB experience is necessary for additional analyses conducted outside IDEAS?

25.09.2025 02:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thanks, Brianna! Do you like it and find it useful for producing quality data?

23.09.2025 01:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Is anyone using the IDEAS platform from #inscopix to analyze single-unit calcium data? πŸ”¬πŸ§ͺ🧠

23.09.2025 00:32 πŸ‘ 1 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0
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Hosting the Pavlovian society annual meeting in SYDNEY was the highlight of my career! Thanks to all who came from near and far to present their awesome science. Looking forward to 2026 in Montreal. Come and join us!

10.08.2025 23:08 πŸ‘ 40 πŸ” 3 πŸ’¬ 5 πŸ“Œ 0
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My first GRC amygdala in Barcelona hosted by @katewassum.bsky.social did not disappoint! Can’t wait for the next one with @joserodroma.bsky.social and @annabeyerle.bsky.social! β˜€οΈπŸ•ΆοΈπŸŒ΄πŸŒŠ

18.07.2025 08:15 πŸ‘ 12 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Cancers can be detected in bloodstream three years prior to diagnosis Detection of cancer before a clinical diagnosis could give patients and caregivers more time for intervention and may lead to better outcomes because tumors are more likely to be curable

Genetic material shed by tumors can be detected in the bloodstream three years before cancer diagnosis, according to a study led by investigators at Johns Hopkins University.

That study was made possible with federal funding. Now, many studies like this are canceled. hub.jhu.edu/2025/06/04/...

11.06.2025 23:46 πŸ‘ 4714 πŸ” 2301 πŸ’¬ 60 πŸ“Œ 111
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Prefrontal encoding of an internal model for emotional inference - Nature Neurons in the rodent dorsomedial prefrontal cortex encode a flexible internal model of emotion by linking directly experienced and inferred associations with aversive experiences.

... neurons in the rodent dorsomedial prefrontal cortex (dmPFC) [link] sensory stimuli in the environment with aversive events, whether they were directly or *indirectly* associated with that experience....

by the amazing lab of @jojolab.bsky.social

πŸ§ πŸ“ˆ

www.nature.com/articles/s41...

15.05.2025 01:43 πŸ‘ 34 πŸ” 8 πŸ’¬ 1 πŸ“Œ 0
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Dopaminergic processes predict temporal distortions in event memory Our memories do not simply keep time - they warp it, bending the past to fit the structure of our experiences. For example, people tend to remember items as occurring farther apart in time if they spa...

New from our lab: your brain doesn’t just remember time - it bends it.

We show that the dopamine system responds to natural breakpoints in experience, and this relates to more stretched memories of time. Blinking also increases, signaling encoding of new memories.

www.biorxiv.org/content/10.1...

19.05.2025 21:56 πŸ‘ 94 πŸ” 35 πŸ’¬ 3 πŸ“Œ 3

I have Tycho on repeat 🌈

14.05.2025 04:14 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

#whatkeepsmeinscience #community

13.05.2025 22:12 πŸ‘ 14 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Yes! We need to see more of this. πŸ§ͺ

04.05.2025 03:30 πŸ‘ 14 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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One of the most epic trips of my life! Joshua Tree retreat with 11 of the most inspirational neuroscientists I know!

Thx to Moriel Z and Bianca JM for organizing. And featuring Michelin star chef and yoga instructor @denisejcai.bsky.social

Forever grateful for this crew

Until next year ❀️

πŸ§ͺ🧠

29.04.2025 21:32 πŸ‘ 38 πŸ” 2 πŸ’¬ 2 πŸ“Œ 1

Who’s coming to Sydney!?

10.04.2025 23:08 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0