Postdoc in visual cognitive neuroscience 🧠 @ Donders Institute. Interested in attention, perception and imagery (she/her)
Maëlle Lerebourg
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But in most real-world searches, object appearance is uncertain, and strongly context dependent. The same object (an apple) evokes very different visual input in these two scenes, based on its distance from the observer, surrounding objects etc... and could require very different templates.
How do we search for apples in the supermarket or check for approaching cars? To prioritize visual processing of relevant objects around us, we rely on an attentional template, a memory representation of object features that guides attention towards potential targets.
However, other evidence suggests real-world templates are very stable and context-independent, e.g., size- and viewpoint invariant. Such stable templates generalize across many contexts, providing useful context-independent defaults (a 'one-size-fits-all' approach).
Recent evidence suggests attentional templates can be flexibly adapted based on a range of context expectations to reflect the most relevant object features in the current environment, e.g., features that are unique to the target, the target's expected retinal size or features of associated objects
To find out more, please check out the review, which can be downloaded for free for the next 50 days with this link authors.elsevier.com/a/1n2Gt4sIRv...!
What do we look for when searching for objects in our daily-life environments? Very happy that I can now share this review, together with @suryagayet.bsky.social , @predictivebrain.bsky.social and @peelen.bsky.social🥳
A brief thread below!
Here, we bring together current behavioral, eyetracking and neuroimaging evidence for flexible and stable templates. Based on this evidence, we conclude that optimal search depends on balancing the relative costs and benefits of template adaptation, enabling efficient attention “in the wild".
🚨 New paper out in Science Advances 🚨
With @suryagayet.bsky.social and @peelen.bsky.social, in two fMRI studies we investigate mental object rotations that are driven by the scene context, rather than purely by cognitive operations. 🧵 www.science.org/doi/10.1126/...
