Lightnews — Scholar-powered news

Reposted by Arianna Moccia

Buddhika Bellana @buddhikabellana.bsky.social · Sep 5

How might stories shed light on brain function? Check out this opinion piece by @alexbarnett.bsky.social and I about the DMN and "situation models" -- our understanding of the current "state of affairs" in a story (or even experience).

www.sciencedirect.com/science/arti...

On the left: an illustration from Brooke's 1904 rendition of Goldilocks and the Three Bears, where Little bear discovers their favourite chair is broken 😲. On the right, a sketch of what a corresponding "situation model" might contain.

3 20 52

Reposted by Arianna Moccia

Jamie Cockcroft @jamiecockcroft.bsky.social · Sep 8

Was meant to be presenting at #BACN25 on Thursday. Unfortunately, COVID has decided otherwise. My poster will still make an appearance though. Even better? It’s presented by @aidanhorner.bsky.social instead! Go check it out on Thursday along with other lab posters on narratives, objects and schema.

Jamie Cockcroft @jamiecockcroft.bsky.social · Sep 3

🚪🧠 Ever wondered if walking through doors really changes your memory? At #ESCOP25 today I’m at Board 19 showing how spatiotemporal boundaries impact recall in VR. Although time matters, it’s more to do with using it effectively!

This poster presents work that examines how spatiotemporal boundaries influence recall. Previous research suggests that such boundaries improve memory (Logie & Donaldson, 2021). It remains unclear, however, whether the benefit comes directly from the boundaries or from the post-encoding processes they permit, such as elaborative rehearsal. Across three experiments, participants studied words in a virtual environment under different conditions: (1) Non-segmented: continuous word presentation in a single room; (2) Segmented: a new room introduced every four words, creating spatiotemporal boundaries; (3) Non-segmented (time): continuous word presentation in one room, with structured pauses to match the timing of the segmented condition. In Experiment 3, the segmented condition was replaced by a non-segmented (task) condition, which used the same timing as the non-segmented (time) condition but filled the pauses with a 2-back task to prevent rehearsal. Findings were as follows: Experiments 1 and 2 showed better recall in the segmented and non-segmented (time) conditions compared to the non-segmented condition, with no difference between segmented and non-segmented (time). Experiment 3 found reduced recall when a task replaced the free period. However, it did not replicate the earlier benefit of non-segmented (time) over non-segmented. Overall, the results suggest that recall advantages observed in earlier work may be due to post-encoding processes rather than the boundaries themselves. The next experiment will test whether elaborative rehearsal or resource allocation during encoding better explains these effects by systematically varying the presence of free periods and tasks.

1 3 6

Arianna Moccia @arimoccia.bsky.social · Sep 8

Hi! Nice to virtually meet you! Here is the QR code to a PDF of the poster. Glad you found it interesting! If you have any questions or want more details, happy to chat about it! 🙂

2 1 3

Reposted by Arianna Moccia

Jamie Cockcroft @jamiecockcroft.bsky.social · Aug 2

Mixed-effects modellers, assemble!

Just dropped a (very niche) blog on the weird quirks that occur with uncorrelated random effects and the trifecta of packages: lme4, afex, and performance (in R).

Read here 👉 sites.google.com/view/jamieco...

#rstats #MixedModels #lme4 #afex #performanceR

captain america is holding a hammer and says avengers assemble

Alt: Captain America holding Mjölnir and says: “Avengers… Assemble!”

media.tenor.com

2 7 22

Reposted by Arianna Moccia

Alexa Morcom @alexamorcom.bsky.social · Jul 23

So happy this is finally out! Despite Covid delays and thanks to persistence by @arimoccia.bsky.social + the helpful reviewers

Starting to uncover how memory cues and goals interact - with implications for how we understand memory reconstruction during retrieval

Arianna Moccia @arimoccia.bsky.social · Jul 16

🚨Paper now published! 🚨

The Effects of External Cue Overlap and Internal Goals on Selective Memory Retrieval.

Grateful for thorough reviews that made it stronger. Out now in #EJN: doi.org/10.1111/ejn..... w @alexamorcom.bsky.social @MattPlummer @ivorsimpson.bsky.social. Updated summary🧵👇

The Effects of External Cue Overlap and Internal Goals on Selective Memory Retrieval as Revealed by Electroencephalographic (EEG) Neural Pattern Reinstatement

This EEG study used multivariate decoding in humans to investigate how memories are selected when retrieval goals vary. The results showed that EEG neural patterns reinstating studied information tra...

doi.org

1 3 10

Arianna Moccia @arimoccia.bsky.social · Jul 29

Thank you Giuli!! 🙏

Reposted by Arianna Moccia

Aidan Horner @aidanhorner.bsky.social · Jul 29

Happy publication day to first author @ewanmurray.bsky.social! A lot of hard work by Ewan went into this, so it is great to see if fully published.

A Meta-analytic Review of the Effectiveness of Spacing and Retrieval Practice for Mathematics Learning

#cognition #psychscisky #neuroskyence

A Meta-analytic Review of the Effectiveness of Spacing and Retrieval Practice for Mathematics Learning - Educational Psychology Review

Spaced retrieval practice harnesses two well-studied phenomena: the spacing effect, where spacing out practice over several sessions leads to a gain in retention compared to massed practice in one ses...

link.springer.com

3 8 38

Reposted by Arianna Moccia

Emma James @emljames.bsky.social · Jul 17

📣 New job alert! I'm looking for a 2-year research assistant for a project on word learning from childhood to adulthood. Come and join us in lovely York! Please RT 🙏 @yorkpsychology.bsky.social jobs.york.ac.uk/vacancy/rese...

Jobs - The University of York

jobs.york.ac.uk

1 43 33

Arianna Moccia @arimoccia.bsky.social · Jul 16

Thanks Marius!! 🙏 Hope you’ll enjoy reading it!

1

Arianna Moccia @arimoccia.bsky.social · Jul 16

Thanks for reading till the end. Questions and comments are welcome!

Thanks to #FundaçãoBial for funding and to @jamiecockcroft.bsky.social for stats advice!🧵9/9

1 3

Arianna Moccia @arimoccia.bsky.social · Jul 16

Results suggest at least two stages of selection within the retrieval cascade: 1) external cues modify which memories get reinstated & 2) further goal-driven processing amplifies targeted memories in line with goals. For simple model inspired by doi.org/10.1016/j.ti... 🧵8/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

Final result: people also reinstated neural patterns as they prepared to retrieve the upcoming trial (at least when cues were words). As predicted by the encoding specificity principle this preparatory goal-related reinstatement may be how selective retrieval is achieved🧵7/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

This differed with our original findings for the left parietal ERP. This ERP (Bottom Left) was more target-selective than reinstatement (Top Left) when cues matched targets more, but when cues matched non-targets more, only reinstatement was selective for non-targets (Right for comparison)🧵6/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

Decoding of scalp ERPs showed: reinstatement of study phase neural patterns was target-selective when the external cues matched targets = audio with word cues (Exp1) or pictures with picture cues (Exp2), but was reversed (non-target > target) when cue match was greater with non-targets🧵5/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

But the left parietal ERP may reflect the outcome of high-level cortical processing during recollection. As goal-driven reconstruction can transform initial pattern-completed neural representations, we reasoned that goals and cues might impact recollection at multiple stages🧵4/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

In earlier study, people had to retrieve target objects studied as audios or pictures (in #CABN see doi.org/10.3758/s134...). Retrieval success ERPs (left parietal effect) were target-selective (> non-targets) – but only when external cues matched the targeted information🧵3/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

When remembering, people reactivate neural patterns of original events. This neural reinstatement is initiated when the hippocampus pattern-completes studied events from retrieval cues. Given a cue, would goals modify reinstatement so it's selective for targeted memories?🧵2/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

How are relevant memories selected out of a large store of events? We measured🧠#EEG neural reinstatement to test how selective memory retrieval is achieved 🧵1/9

1 1

Arianna Moccia @arimoccia.bsky.social · Jul 16

🚨Paper now published! 🚨

The Effects of External Cue Overlap and Internal Goals on Selective Memory Retrieval.

Grateful for thorough reviews that made it stronger. Out now in #EJN: doi.org/10.1111/ejn..... w @alexamorcom.bsky.social @MattPlummer @ivorsimpson.bsky.social. Updated summary🧵👇

The Effects of External Cue Overlap and Internal Goals on Selective Memory Retrieval as Revealed by Electroencephalographic (EEG) Neural Pattern Reinstatement

This EEG study used multivariate decoding in humans to investigate how memories are selected when retrieval goals vary. The results showed that EEG neural patterns reinstating studied information tra...

doi.org

2 7 17

Reposted by Arianna Moccia

Aidan Horner @aidanhorner.bsky.social · Nov 21

Paper accepted!!!

The holistic forgetting of events and the (sometimes) fragmented forgetting of objects

osf.io/preprints/ps...

#neuroskyence #psychscisky #cognition

6 15 88

Arianna Moccia @arimoccia.bsky.social · Oct 15

Thanks for reading till the end. Questions and comments are welcome!
Thanks to Fundação Bial for funding and to @jamiecockcroft.bsky.social for stats advice!🧵9/9

1

Arianna Moccia @arimoccia.bsky.social · Oct 15

Results suggest at least two stages of selection within the retrieval cascade: 1) external cues modify which memories get reinstated & 2) further goal-driven processing amplifies targeted memories in line with goals. For simple model inspired by Staresina & Wimber (2019; TiCS) review🧵8/9

Arianna Moccia @arimoccia.bsky.social · Oct 15

Final result: people also reinstated neural patterns as they prepared to retrieve the upcoming trial (at least when cues were words). As predicted by the encoding specificity principle this preparatory goal-related reinstatement may be how selective retrieval is achieved🧵7/9

Arianna Moccia @arimoccia.bsky.social · Oct 15

This differed with our original findings for the left parietal ERP. This ERP (Right) was more target-selective than reinstatement (Left) when cues matched targets more, but when cues matched non-targets more, only reinstatement was selective for non-targets🧵6/9

Arianna Moccia @arimoccia.bsky.social · Oct 15

Decoding of scalp ERPs showed: reinstatement of study phase neural patterns was target-selective when the external cues matched targets (= audio with word cues or pictures with picture cues), but was reversed (non-target > target) when cue match was greater with non-targets🧵5/9