New preprint with @nathanieldaw and @DShohamy!. We often have to make choices we've never made before. One way to do so is by knitting together relevant memories to form new relationships. When do people access their memories to construct preferences?.

RT @AnnaSchapiro: Super excited to share this one, out now in J Neuro! Memory reactivation during sleep does not act holistically on object….

RT @KrisTorpJensen: Happy to see the final version of this project with @marcelomattar & @GJEHennequin out – and very grateful to the four….

RT @SagivYotam: Happy to share the preprint for my main grad school project, with Twitterless Thomas Akam, @IlanaWitten, and @nathanieldaw!….

RT @ProfData: "Large language models surpass human experts in predicting neuroscience results" w @ken_lxl and LLMs….

RT @Ji_An_Li: I am speaking at COSYNE 2024. Please check out my talk if you're attending the event! #cosyne2024 #cosyne24 - via #Whova even….

RT @marcelomattar: Come join us! @weijima01 and I are recruiting a postdoc to study human planning in chess using a massive dataset of onli….

RT @Qihong_Lu: I’m pleased to announce our preprint 😃 – Toward a More Biologically Plausible Neural Network Model of Latent Cause Inference….

RT @lizsiefert: New preprint! We use real-time Targeted Memory Reactivation to show that sleep reactivation transforms object memories, enh….

We think this provides evidence for recent ideas suggesting that model-based inference as it is typically studied (reactively, at decision time) is one of a more general set of computations that access memory at different times ( .

Using behavior to index strategy use and fMRI to decode memory access, we found that proactive memory access is more common and that it allows for efficient inference. But we also found that people access memories reactively when choices are linked to more numerous associations.

In this paper, we asked whether:. i) it is actually the case that both strategies exist and support inference,. ii) proactive memory access provides benefits (like more efficient choices) at decision time, and. iii) people rely on each strategy when it is sensible to do so?.

It isn't clear if/when one of these strategies is better than the other. The possibility of proactive computation in particular implies that the brain has to be judicious about which memories it accesses and when, since there are so many possible future actions to contemplate.

Some studies have found that memories are accessed and integrated at the moment a decision is faced (reactively), while others have found that memory integration happens earlier (proactively).

RT @MarlieTandoc: New preprint! We show that category structure rapidly warps memory for individual object features according to their role….

RT @RoyCLinMD: The role of #cerebellum in #reward has been identified, but which specific aspect goes wrong in a dysfunctional cerebellum f….

RT @biorxiv_neursci: Lesions to different regions of frontal cortex have dissociable effects on voluntary persistence .

RT @TimAmosK: (1/7)First paper of the PhD out today! What’s it about? Most of the places we traverse and actions we….