Gemma Donnelly
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gdonnelly.bsky.social
Gemma Donnelly
@gdonnelly.bsky.social
Research fellow at UCL.
Interested in predictive processing in vision and fMRI 👁️🧠
Reposted by Gemma Donnelly
@dotproduct.bsky.social's first first author paper is finally out in @sfnjournals.bsky.social! Her findings show that content-specific predictions fluctuate with alpha frequencies, suggesting a more specific role for alpha oscillations than we may have thought. With @jhaarsma.bsky.social. 🧠🟦 🧠🤖
Contents of visual predictions oscillate at alpha frequencies
Predictions of future events have a major impact on how we process sensory signals. However, it remains unclear how the brain keeps predictions online in anticipation of future inputs. Here, we combin...
www.jneurosci.org
October 21, 2025 at 11:05 AM
Reposted by Gemma Donnelly
@peterkok.bsky.social and I wrote a book chapter on how layer specific fMRI can shine light on disorders hallmarked by perceptual disturbances. This is part of a series on Perceptual Dysregulation in Psychiatric Nosology edited by @skhalsa.bsky.social and Al Powers link.springer.com/chapter/10.1...
How Layer-Specific fMRI Can Contribute to Understanding Perceptual Disturbances Across Psychiatric Disorders
Perceptual disturbances occur across various sensory domains and contribute to significant suffering in numerous psychiatric and neurological conditions. Despite decades of research into the neural me...
link.springer.com
July 15, 2025 at 10:00 AM
Reposted by Gemma Donnelly
www.sciencedirect.com/science/arti...
Paper out now: Feedback to the periphery and fovea of V1 follows different functions. Contextual scene information goes to both regions. Object information to the fovea if it is task relevant. Thanks to my team @ccniuofg.bsky.social and have a good break now.
Retinotopic biases in contextual feedback signals to V1 for object and scene processing
Identifying the objects embedded in natural scenes relies on recurrent processing between lower and higher visual areas. How is cortical feedback info…
www.sciencedirect.com
December 24, 2024 at 2:51 PM