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Benjamin Lowe

@brainboyben.bsky.social
99 followers 79 following 48 posts

Cog neuro postdoc at the MRC Cognition and Brain Sciences Unit, Cambridge.

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Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
Perhaps the coolest result was that these surprise signals were *shared across attributes*. That is, classifiers trained to decode surprise for shape could reliably do so for colour (and vice versa), after accounting for latency shifts.
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Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
Interestingly, we were still able to decode multivariate whole-scalpe representations of surprise (neutral vs. violation) separately for each attribute. Moreover, these signals were reliable from ~250 ms, suggesting that surprise is predominantly signalled after the initial feedforward sweep.
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Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
We first looked at the evoked responses and found classic effects of adaptation via the constant vs. change sequence comparisons. This said, we found no evidence for visual surprise after controlling for cortical adaptation (i.e., when comparing surprising changes to neutral changes).
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Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
Here, we recorded EEG from participants who viewed sequences of a bound object that changed in either colour or shape over four steps. Crucially, the contexts of these changes were designed to appear random (and unsurprising) or violate the established trajectory (and cause surprise).
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Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
Perhaps the coolest result was that surprise signals were *shared across attributes*. That is, classifiers trained to decode surprise for shape could reliably do so for colour (and vice versa), after accounting for latency shifts.
100
Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
Interestingly, we were still able to decode whole-scalp multivariate representations of surprise (neutral vs. violation) separately for each attribute. Moreover, these signals were reliable from ~250 ms, suggesting that surprise is predominantly signalled after the initial feedforward sweep.
100
Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
We first looked at the evoked responses and found classic effects of adaptation via the constant vs. change sequence comparisons. This said, we found no evidence for visual surprise after controlling for cortical adaptation (i.e., when comparing surprising changes to neutral changes).
100
Benjamin Lowe @brainboyben.bsky.social · 12/12/2025
Here, we recorded EEG from participants who viewed sequences of a bound object that changed in either colour or shape over four steps. Crucially, the contexts of these changes were designed to appear random (and unsurprising) or violate the established trajectory (and cause surprise).
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Benjamin Lowe @brainboyben.bsky.social · 26/11/2025
And it was an absolute treat to run! Thanks everyone who attended :) #ACNS2025
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Benjamin Lowe @brainboyben.bsky.social · 23/11/2025
Road trippin’ to ACNS 2025, Melbourne! @matthewod.bsky.social @tvcottier.bsky.social (Plus Ella and Seri) @acnsau.bsky.social
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