Mariam Aly

We show that synesthesia is sensory and automatic in nature: the pupil scales with the brightness of experienced synesthetic colors. doi.org/10.7554/eLif...
Now in its new dress @elife.bsky.social (convincing & valuable in round 1).
If anyone wants to pick up the method, happy to share & explain!

Very well-deserved, Zach! Congrats!! 🎉🎊 I’ll be excited to hear of your most outlandish post-tenure planned projects 😎

Every time you experience something new, your brain faces a decision: Should it update an existing memory or create a new one?

In our new paper in @sfnjournals.bsky.social #JNeurosci, we isolate that exact decision, moment-by-moment during learning 🧵

Priority-Driven Transformation of Visual Working Memory Content

New this year at @cogneuronews.bsky.social 2026: All abstracts will be published in Proceedings of the Annual Meeting of the Cognitive Neuroscience Society jocnf.pubpub.org/cns2026. Functionality includes ability to append a visual abstract, like this: doi.org/10.21428/8e6...

1/ 🚨 New preprint

Key Moments Scaffold the Semantic Structure of Narratives

Using spoken recall and annotations from three naturalistic datasets with topic modeling, we ask: which parts of a narrative contribute most to its semantic structure and subsequently memory?

Preprint: osf.io/dcfvw

This conversation is so wholesome 😊 Keep it up, you’re both doing great!

a large screen shows a man 's face and says ingsoc ALT: a large screen shows a man 's face and says ingsoc

So... A friend was supposed to give a PURELY SCIENTIFIC talk at NIH within the next couple of weeks and it was cancelled because of a "new process" where all speakers/talks have to be CLEARED BY A POLITICAL APPOINTEE.

Recently, van der Stigchel and colleagues posted a provocative commentary suggesting that we should be wary of bots in online behavioral data collection (🧵by @cstrauch.bsky.social here: bsky.app/profile/cstr...). But should we? Here is my response letter osf.io/preprints/ps.... 1/5

Excited to share our paper (with @jzacks.bsky.social), now out in JEP:LMC!

Event boundaries sometimes disrupt temporal order memory in list-based paradigms—but what happens in narratives with more complex structures that better resemble real life?

✨ Link: psycnet.apa.org/record/2027-...

Way to go, Thomas! I’ve been in awe of this work since I first heard you and Katherine talk about it. Just beautiful. Congrats!!🎉

Episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz Nature Human Behaviour - Biba et al. show that episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz.

I am excited to share my first paper, showing that episodic memory formation is theta rhythmic, is now published in Nature Human Behavior! Check it out here: rdcu.be/e6pzS. Thanks to my PI, Katherine Duncan, and to my collaborators for their support on this journey! Stay tuned for iEEG follow up 🧠

Episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz Nature Human Behaviour, Published online: 02 March 2026; doi:10.1038/s41562-026-02416-5Biba et al. show that episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz.

Episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz

A line graph showing NSF grant awards made through 2/27/26 for fiscal year 2026 compared with grant awards for fiscal years 2021-2025.

NSF Update (Awards through 2/27/26)

Directorates to follow

1/10

Sorry for the delay – the PsyArXiv link works now 😅

1/6 Happy to share our new paper with @grassocamille.bsky.social and @virginievanw.bsky.social: "Nested contextual change and the temporal compression of episodic memory". www.biorxiv.org/content/10.6...

📍2003 marked the year in which the retro-cue paradigm was born. Fast forward, 23 years later, we adapt this logic to long-term memory and ask how does attention shape retrieval from long-term memory? 🤔

w/ @william-nm.bsky.social Kia Nobre, Nahid Zokaei and Nora Roüast
osf.io/preprints/ps... 1/n

America needs a Surgeon General who follows the science, not trending conspiracies and pseudoscience. Tell your Senator to vote against Casey Means as our nation’s doctor!

Don't you love not having access to your own work 🙄?

Just sent! Enjoy 😅

Ah yes, you're right – they changed from post-moderation to pre-moderation. Here's the preprint via Dropbox!

Strange — it works for me. How’s this? psyarxiv.com/ry94x_v1

How do we balance external attention to the outside world and internal attention to our thoughts & memories?

We review evidence that external and internal attention can compete, unfold concurrently, or cooperate!

Loved working on this with @samversc.bsky.social & @tobiasegner.bsky.social!

New with @tobiasegner.bsky.social & @mariamaly.bsky.social! The relationship between external and internal attention is not fixed but varies between competition, concurrence, and cooperation. We shed light on the conditions that allow for each of these relationships to occur🔍

psyarxiv.com/ry94x_v1

Experimental task. Trials began with variable fixation (500–1,000 ms) and placeholder (500–1,000 ms) intervals, followed by two spatial cues (100 ms) on opposite sides of the visual field to indicate the likely locations of both a subsequent near-threshold target and a salient distractor (100 ms). Cue validity was 70% for both cue types. Targets and distractors were presented after a variable delay (500–1,600 ms). Stimulus displays could include (i) both a target and a distractor, (ii) a target only, (iii) a distractor only, or (iv) neither a target nor a distractor. The number pad on a computer keyboard was used to indicate the presence of a target at the cued location, a target at a non-cued location, or no target.

Attentional resources vary rhythmically, but what about susceptibility to #distractors?@fiebelkornian.bsky.social &co show that theta & alpha phases modulate sensitivity & distractor impact, revealing rhythm-specific mechanisms shaping #attention & distractability @plosbiology.org 🧪 plos.io/4tU0vh4

Where you look next isn’t arbitrary.
In our new paper, we model human eye movements in immersive visual search as reinforcement learning under cognitive constraints. 🧵

Real-world Objects Scaffold Visual Working Memory for Features: Increased Neural Engagement When Colors Are Remembered as Part of Meaningful Objects Abstract. Visual working memory is a core cognitive function that allows active storage of task-relevant visual information. Contrary to the common assumption that the capacity of this system is fixed...

New paper with @timbrady.bsky.social and @violastoermer.bsky.social now out in JoCN! "Real-world Objects Scaffold Visual Working Memory for Features: Increased Neural Engagement When Colors Are Remembered as Part of Meaningful Objects" doi.org/10.1162/JOCN...

New preprint out 🎉

What happens to the hippocampal “place code” when an animal is actively engaged in a task?

The answer surprised us (and might surprise you too!).

Let's dive in ⬇️

Link:
"Hippocampal trace coding dominates and disrupts place coding" www.biorxiv.org/content/10.6...

Hippocampal trace coding dominates and disrupts place coding https://www.biorxiv.org/content/10.64898/2026.02.17.706430v1

Rejection-based choices discourage people from opting out of voting - Nature Communications When people dislike their options for candidates, they tend to refrain from voting rather than voting for the candidate they like best. Here, the authors show that this tendency to opt out of lose-los...

Excited to share my first PhD paper with @ashenhav.bsky.social
@shenhavlab.bsky.social
“Rejection-based choices discourage people from opting out of voting.”
www.nature.com/articles/s41...

What episodic memory reveals about the default mode network osf.io/preprints/ps...

Adaptive episodic memory: how multiple memory representations drive behavior in humans and nonhumans | Physiological Reviews | American Physiological Society Episodic memory is a declarative long-term memory of a specific past experience. As such, it is multifaceted, encompassing both the objective and subjective components of that experience. These components can be flexibly represented at different levels of granularity, from precise, context-specific details to generalized, gistlike representations. In this review, we suggest that 1) multiple representations of an episodic memory at different levels of granularity are simultaneously encoded into a memory trace and 2) the relative weighting of these representations determines the extent to which a memory is reconstructed or reproduced at retrieval. We propose that this representational flexibility drives adaptive behavior by prioritizing reconstruction or reproduction depending on the age of the memory, its relationship to prior knowledge, current attentional goals or task demands, and individual differences. Drawing on research in humans and nonhuman animals, we show a close correspondence between psychological and neural representations of a memory across encoding, consolidation, and retrieval. Specifically, we discuss how hippocampal activity in humans and engram formation and activation in rodents support the reproduction of detailed memory representations, whereas schema formation across species, mediated by the medial prefrontal cortex, facilitates reconstruction and generalization to guide behavior. Finally, we consider how species- and individual-level differences shape episodic memory representations. By integrating findings across species, we illustrate how the correspondence between neural and psychological representations enables multiple memory representations to balance stability and flexibility, ultimately driving adaptive behavior.

How do memories guide behaviour?

Multiple memory representations, from detailed to gist-like, let us flexibly reconstruct or reproduce past experiences to behave adaptively across species.

Now out in Physiological Reviews with Morris Moscovitch, Melanie Sekeres & @brianlevine.bsky.social!