Sam McDougle
@actlab.bsky.social
Key Takeaways:
• 'Atomic' actions contain meaningful internal structure
• Visual perception represents the event structure within atomic actions.
• Automatic perceptual action segmentation at brief timescales draws on both semantic knowledge and visual cues
• 'Atomic' actions contain meaningful internal structure
• Visual perception represents the event structure within atomic actions.
• Automatic perceptual action segmentation at brief timescales draws on both semantic knowledge and visual cues
November 25, 2025 at 3:40 PM
Key Takeaways:
• 'Atomic' actions contain meaningful internal structure
• Visual perception represents the event structure within atomic actions.
• Automatic perceptual action segmentation at brief timescales draws on both semantic knowledge and visual cues
• 'Atomic' actions contain meaningful internal structure
• Visual perception represents the event structure within atomic actions.
• Automatic perceptual action segmentation at brief timescales draws on both semantic knowledge and visual cues
There's a lot of fun details and experiments, including my favorite new control stimulus (which Zekun invented) - the 'spiralized stimulus' 😵💫🌀
November 25, 2025 at 3:40 PM
There's a lot of fun details and experiments, including my favorite new control stimulus (which Zekun invented) - the 'spiralized stimulus' 😵💫🌀
Zekun asked how our visual system automatically parses brief ("atomic") actions. Strikingly, she finds that both low-level visual features (e.g., motion energy) and high-level semantics (e.g., discrete action 'phases') shape event perception during action observation
November 25, 2025 at 3:40 PM
Zekun asked how our visual system automatically parses brief ("atomic") actions. Strikingly, she finds that both low-level visual features (e.g., motion energy) and high-level semantics (e.g., discrete action 'phases') shape event perception during action observation
New paper from the lab, "Perceiving Event Structure in Brief Actions," now out in Cognitive Psychology :)
Led by the inimitable Zekun Sun
This was my lab's first foray into event cognition
gift link: sciencedirect.com/science/arti...
Led by the inimitable Zekun Sun
This was my lab's first foray into event cognition
gift link: sciencedirect.com/science/arti...
November 25, 2025 at 3:40 PM
New paper from the lab, "Perceiving Event Structure in Brief Actions," now out in Cognitive Psychology :)
Led by the inimitable Zekun Sun
This was my lab's first foray into event cognition
gift link: sciencedirect.com/science/arti...
Led by the inimitable Zekun Sun
This was my lab's first foray into event cognition
gift link: sciencedirect.com/science/arti...
thrilled!! but speaking after @monicarosenb.bsky.social ??? that's too tough to follow
October 29, 2025 at 2:59 PM
thrilled!! but speaking after @monicarosenb.bsky.social ??? that's too tough to follow
We review behavioral and neural evidence for MWM, focusing on the system's various roles in retrospectively maintaining motor representations, prospectively planning movements, and motor learning.
Please share! And feedback welcome :)
Please share! And feedback welcome :)
September 15, 2025 at 12:56 PM
We review behavioral and neural evidence for MWM, focusing on the system's various roles in retrospectively maintaining motor representations, prospectively planning movements, and motor learning.
Please share! And feedback welcome :)
Please share! And feedback welcome :)
Thrilled that our new review "Motor Working Memory" is now in press at TiCS!
@cp-trendscognsci.bsky.social
@cellpress.bsky.social
By me +
Hanna Hillman
We argue that a dedicated research program on 'working memory for movements' is long overdue
Link: authors.elsevier.com/a/1lmMX4sIRv...
@cp-trendscognsci.bsky.social
@cellpress.bsky.social
By me +
Hanna Hillman
We argue that a dedicated research program on 'working memory for movements' is long overdue
Link: authors.elsevier.com/a/1lmMX4sIRv...
September 15, 2025 at 12:56 PM
Thrilled that our new review "Motor Working Memory" is now in press at TiCS!
@cp-trendscognsci.bsky.social
@cellpress.bsky.social
By me +
Hanna Hillman
We argue that a dedicated research program on 'working memory for movements' is long overdue
Link: authors.elsevier.com/a/1lmMX4sIRv...
@cp-trendscognsci.bsky.social
@cellpress.bsky.social
By me +
Hanna Hillman
We argue that a dedicated research program on 'working memory for movements' is long overdue
Link: authors.elsevier.com/a/1lmMX4sIRv...
New preprint from the lab! 🧠
Led by Juliana Trach, w/ Sophia Ou
Using fMRI, we discovered evidence for time-sensitive reward prediction errors (RPEs) in the human cerebellum.
Builds on, and extends, recent work in both rodents and NHPs
Led by Juliana Trach, w/ Sophia Ou
Using fMRI, we discovered evidence for time-sensitive reward prediction errors (RPEs) in the human cerebellum.
Builds on, and extends, recent work in both rodents and NHPs
September 8, 2025 at 2:31 PM
New preprint from the lab! 🧠
Led by Juliana Trach, w/ Sophia Ou
Using fMRI, we discovered evidence for time-sensitive reward prediction errors (RPEs) in the human cerebellum.
Builds on, and extends, recent work in both rodents and NHPs
Led by Juliana Trach, w/ Sophia Ou
Using fMRI, we discovered evidence for time-sensitive reward prediction errors (RPEs) in the human cerebellum.
Builds on, and extends, recent work in both rodents and NHPs
Unprompted, my kid Leo wrote this on my office whiteboard “The brain controls the body.”
Also, seems like drawing is referencing the contralateral control scheme?
Also, seems like drawing is referencing the contralateral control scheme?
August 20, 2025 at 1:43 PM
Unprompted, my kid Leo wrote this on my office whiteboard “The brain controls the body.”
Also, seems like drawing is referencing the contralateral control scheme?
Also, seems like drawing is referencing the contralateral control scheme?
New England bluegrass fans: We (Audrey Mae) are playing tomorrow at the Podunk Music Festival!
August 8, 2025 at 10:05 PM
New England bluegrass fans: We (Audrey Mae) are playing tomorrow at the Podunk Music Festival!
if you didn't catch Juliana Trach's poster at @cogscisociety.bsky.social here it is ––>
August 4, 2025 at 1:34 PM
if you didn't catch Juliana Trach's poster at @cogscisociety.bsky.social here it is ––>
Gonna change my mind every ten minutes, but quick first go:
June 24, 2025 at 11:22 PM
Gonna change my mind every ten minutes, but quick first go:
2003 déjà vu
The vibes are not good
The vibes are not good
June 19, 2025 at 12:44 PM
2003 déjà vu
The vibes are not good
The vibes are not good
@rldmdublin2025.bsky.social morning run in a few, run off those guinnesses (guinnessi? guinnessae?) info below
June 12, 2025 at 6:45 AM
@rldmdublin2025.bsky.social morning run in a few, run off those guinnesses (guinnessi? guinnessae?) info below
7 pre-registered experiments and lots of fun control studies.
Our favorite involves a new stimulus Zekun invented, the "Spiralized Stimulus"!
Our favorite involves a new stimulus Zekun invented, the "Spiralized Stimulus"!
May 21, 2025 at 5:16 PM
7 pre-registered experiments and lots of fun control studies.
Our favorite involves a new stimulus Zekun invented, the "Spiralized Stimulus"!
Our favorite involves a new stimulus Zekun invented, the "Spiralized Stimulus"!
In this study, Zekun asked: When we visually segment observed actions, is perceptual segmentation fully driven by low-level features (e.g., motion dynamics, scene cuts), or also by high-level structure (e.g., distinct phases of a tennis serve).
We find that BOTH matter.
We find that BOTH matter.
May 21, 2025 at 5:16 PM
In this study, Zekun asked: When we visually segment observed actions, is perceptual segmentation fully driven by low-level features (e.g., motion dynamics, scene cuts), or also by high-level structure (e.g., distinct phases of a tennis serve).
We find that BOTH matter.
We find that BOTH matter.
Apoorva Sharma giving her talk on “Temporal Indexing of Motor Memories”! @ncmsociety.bsky.social #NCMPan25
May 2, 2025 at 2:31 PM
Apoorva Sharma giving her talk on “Temporal Indexing of Motor Memories”! @ncmsociety.bsky.social #NCMPan25