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Posts by Atesh Koul

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The social, decoupled self: interpersonal synchronization of breathing alters intrapersonal cardiorespiratory coupling People synchronize their periodic behavioural and physiological rhythms with each other during social interaction. While this interpersonal synchronization has largely been associated with positive ef...

🫁❤️New preprint out: The social, decoupled self

We show effects of interpersonal synchronization of physiological rhythms on intrapersonal cardiorespiratory coupling: when we sync our breathing, our breathing–heart rhythms decouple, with a perturbed phase-relationship
www.biorxiv.org/content/10.1...

6 months ago 53 30 3 0
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HIRING a Post Doctoral Fellow to work with us!

In collaboration with Andrea Escelsior.

Required skills:
- Systems neuroscience, translational psychiatry
- In vivo calcium imaging (e.g., fiber photometry, miniscope)
- Optogenetics and/or circuit manipulation

Contract length: 2-4 years

1 week ago 4 3 0 1

Our lab is looking for a postdoc!

Multi-Brain Stimulation, Social Interaction, and a lot of other cool stuff! :)

Please share!

6 months ago 1 1 0 0

I’m looking for a postdoc to join my lab and work on Multi-Brain Stimulation (MBS).
Learn more about the project and how to apply below 👇

This position is funded by the @erc.europa.eu
Reposts are very welcome 🙏

#Postdoc #Neuroscience #BrainStimulation #EEG #SocialNeuroscience

6 months ago 10 13 4 2
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Here it is our new preprint on neural encoding of musical expectations in newborns!

in collaboration with B. Toth & I. Winkler's hungrain team and @giacomonovembre.bsky.social 's NPAlab

check it out 👇
www.biorxiv.org/content/10.1...

#musicscience #Neuroscience #MusicCognition #Neurodevelopment

1 year ago 16 6 0 1
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Development of Auditory and Spontaneous Movement Responses to Music over the First Year of Life Humans across cultures not only share the ability to recognise music but also respond to it through movement. While the sensory encoding of music is well-studied, when and how infants naturally start ...

Check out our new preprint on how infants respond to music over the first year of life! 👶🧠💃🎶
While neural responses are pretty much ready to go in the youngest, moving to music takes a bit longer, becoming more complex and potentially more dance-like by 12 months. www.biorxiv.org/content/10.1...

11 months ago 23 11 2 1

Thanks @sciencebanshee.bsky.social it was amazing to have you here! Hope to see you soon.

11 months ago 1 0 1 0

Update: Our biomechanics EMG/Posture study on voice and upper limb kinetics has been accepted at Proceedings B. We show that moving the arms (while manipulating mass) recruits (postural) muscles that interact with the voice through respiratory interactions. Postprint: wimpouw.com/files/Pouwet...

1 year ago 16 5 1 4
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🚨 We’re hiring! 🚨

A postdoc position is available at my lab (npa.iit.it) in Rome! Join us to explore:

🎵 Neural bases of musicality (humans, infants, macaques)
💃🕺 Dance & joint music-making
🤝 Spontaneous social behavior

⬇️ Apply through the link below! ⬇️

1 year ago 33 31 3 3

Thanks @avsp.bsky.social

1 year ago 0 0 0 0
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How accurately can we estimate spontaneous body kinematics from video recordings? Effect of movement amplitude on OpenPose accuracy - Behavior Research Methods Estimating how the human body moves in space and time—body kinematics—has important applications for industry, healthcare, and several research fields. Gold-standard methodologies capturing body kinem...

How accurately can we estimate spontaneous body kinematics from video recordings? Effect of movement amplitude on OpenPose accuracy link.springer.com/article/10.3... OpenPose (OP) vs Vicon (ground truth). OP: overall moderate/varies substantially across participants & body parts > small motion = bad

1 year ago 3 1 0 1

Our work can inform researchers on whether they can substitute traditional infrared-based approaches with video-based ones. It highlights the importance of considering factors such as movement amplitude when evaluating video-based methods, as well as the need for better algorithms and datasets.

1 year ago 2 0 0 0
Relationship between OpenPose accuracy and movement amplitude. For each of the 12 body parts, plots represent both data density and relationship between OpenPose accuracy (coefficient, y-axis) and amplitude of movement (in cm, x-axis). Insets of each plot show the results of curve fitting (adjusted r-squared) for six different functions (best-fitting functions indicated by red arrows). Non-linear functions (power and exponential) typically showed higher r-squared values than a linear function (dark blue bars).

Relationship between OpenPose accuracy and movement amplitude. For each of the 12 body parts, plots represent both data density and relationship between OpenPose accuracy (coefficient, y-axis) and amplitude of movement (in cm, x-axis). Insets of each plot show the results of curve fitting (adjusted r-squared) for six different functions (best-fitting functions indicated by red arrows). Non-linear functions (power and exponential) typically showed higher r-squared values than a linear function (dark blue bars).

Condition inference tree modelling the relationship between OpenPose accuracy and movement amplitude (all body parts combined). The tree predicts OpenPose accuracy using a set of conditional statements (if–then rules). The results from this analysis show that when movement amplitude is lower than e.g., 0.29 cm (node 3), OpenPose accuracy is very weak (mean coefficient = 0.12). Conversely, when movement amplitude is more than e.g., 10.15 cm (node 15), then OpenPose accuracy is strong (mean coefficient = 0.75).

Condition inference tree modelling the relationship between OpenPose accuracy and movement amplitude (all body parts combined). The tree predicts OpenPose accuracy using a set of conditional statements (if–then rules). The results from this analysis show that when movement amplitude is lower than e.g., 0.29 cm (node 3), OpenPose accuracy is very weak (mean coefficient = 0.12). Conversely, when movement amplitude is more than e.g., 10.15 cm (node 15), then OpenPose accuracy is strong (mean coefficient = 0.75).

Impact of camera–body distance and movement amplitude on OpenPose accuracy. Violin plots indexing OpenPose accuracy as a function of camera–body distance and movement amplitude. OpenPose accuracy grew with movement amplitude. Additionally, with increasing distance, accuracy dropped only for large- and medium-amplitude movements.

Impact of camera–body distance and movement amplitude on OpenPose accuracy. Violin plots indexing OpenPose accuracy as a function of camera–body distance and movement amplitude. OpenPose accuracy grew with movement amplitude. Additionally, with increasing distance, accuracy dropped only for large- and medium-amplitude movements.

OpenPose accuracy varied substantially, ranging from being inaccurate to perfect! Interestingly, this variability reflected the varying amplitude of movements performed - poor estimations for low-amplitude movements while, large-amplitude movements (>10 cm) yielded highly accurate estimates.

1 year ago 2 0 1 0
Estimation of body landmarks and accuracy of OpenPose.

Estimation of body landmarks and accuracy of OpenPose.

Video-based motion-tracking technologies are increasingly being used. But can we rely on such estimations? What factors might determine the accuracy? Using a large dataset of 550+ minutes from 46 subjects, we estimated the accuracy of OpenPose using a traditional infrared system as ground truth.

1 year ago 0 0 1 0
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How accurately can we estimate spontaneous body kinematics from video recordings? Effect of movement amplitude on OpenPose accuracy - Behavior Research Methods Estimating how the human body moves in space and time—body kinematics—has important applications for industry, healthcare, and several research fields. Gold-standard methodologies capturing body kinem...

How well can video-based methods estimate body kinematics? In my recent paper with @giacomonovembre.bsky.social, we show that accuracy of one such method (OpenPose) varied substantially across subjects & body parts. Interestingly, this accuracy strongly depended on the movement amplitude. t.ly/4Tlnc

1 year ago 20 8 1 0