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Jim Cavanagh

@jimfcav.bsky.social

Professor @UNM. Here to contribute to EEG research and open data practices. https://www.crclunm.com/

39 Posts227 Follower154 Folgt
Jim Cavanagh@jimfcav.bsky.social · 7mo ago

Yeah! Let's get this year started off right. A new theoretical model for everyone's favorite sensitive and specific neural marker. So why is it a marker of goals if it is called the Reward Positivity? 1/4

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Trends in Cognitive Sciences@cp-trendscognsci.bsky.social · 7mo ago

Online Now: The Reward Positivity signals a goal prediction error

The Reward Positivity signals a goal prediction error

The Reward Positivity (RewP) is an electroencephalogram (EEG) feature that emerges following performance feedback and is commonly understood to index both positive and negative reward-prediction error (RPE+ and RPE−, respectively) signals. In contrast to this dominant perspective, we argue that the RewP is an independent EEG feature that selectively responds to positive RPE and is superimposed on a common background signal. We further propose that the RewP signals a goal prediction error: it is elicited by abstract signals instead of by hedonic 'rewards'. This goal prediction error appears to be produced by a critic-like architecture that is associated with the actor–critic framework in reinforcement learning. This perspective emphasizes the role of the RewP in goal attainment and cognitive control as opposed to being a simple indicator of reward receipt.

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Quentin Huys@docqhuys.bsky.social · 8mo ago

Postdoctoral research position in #ComputationalPsychiatry and #EEG as part of relmed.ac.uk trial testing reinforcement learning as biomarker for antidepressant treatment response. www.ucl.ac.uk/work-at-ucl/... @uclbrainscience.bsky.social @mikebrowning.bsky.social @relmed.bsky.social

Antidepressant treatment shouldn't be a guessing game. RELMED is working towards using advanced research to predict which medication is most likely to help each person along their individual path to recovery.

relmed.ac.uk

Nadja Ging Jehli@nadjagingjehli.bsky.social · last yr.

Excited to share our new paper: whether STN stimulation increases impulsivity depends on theta frequency. 🧠🤓 Grateful to have contributed alongside such a fantastic team! Rachel, Kumar, @jimfcav.bsky.social @janw.bsky.social and more! Link 👇: www.sciencedirect.com/science/arti...

Theta-frequency subthalamic nucleus stimulation increases decision threshold

Executive functions are often impaired in patients with Parkinson’s disease (PD), and these deficits can be predicted by decreased frontal cortical 4-…

sciencedirect.com