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🕹️ How the brain controls movement under uncertainty

A team at the @primatenzentrum.bsky.social including Bernstein member Alexander Gail shows that our brain deals with different forms of visual uncertainty during movements in distinct ways.

More info 👉 bernstein-network.de/en/newsroom/...

Computer vision for primate behavior analysis in the wild - Nature Methods In this Perspective, Vogg et al. discuss the progress and challenges of using computer vision approaches in the behavioral analysis of primates in their natural environment.

SFB Paper Alert!

That’s teamwork: 14 SFB members across nine projects put together a perspective paper on “Computer vision for primate behavior analysis in the wild”, which was published in @naturemethods.bsky.social

www.nature.com/articles/s41...

Even when uncertainty doesn’t affect behavior, it leaves a neural signature. Neural state space analyses reveal a dimension separating high from low uncertainty, regardless of whether it’s target or feedback-related, suggesting the brain can adjust to sensory uncertainty based on behavioral demands.

Visual uncertainty about the target impairs reach accuracy and disrupts cortical motor goal encoding during planning and reach start. In contrast, feedback uncertainty only affects behavior and neural activity when task-critical, as in BCI control where no alternative sensory feedback is available.

Visual target and task-critical feedback uncertainty impair different stages of reach planning in motor cortex - Nature Communications Visual uncertainty impairs reach accuracy. The authors show that uncertainty about the target always impairs cortical motor goal encoding in rhesus monkeys, while feedback uncertainty does so only whe...

🚨Paper alert! Check out our latest publication in @naturecomms.bsky.social by @lukasamn.bsky.social, Virginia Casasnovas, and Alexander Gail: "Visual target and task-critical feedback uncertainty impair different stages of reach planning in motor cortex".
www.nature.com/articles/s41...

Dynamic coding and sequential integration of multiple reward attributes by primate amygdala neurons - Nature Communications The amygdala assigns value to stimuli, yet how its neurons process different value components is unclear. Here the authors show that monkey amygdala neurons respond to different reward attributes and ...

Rewards motivate us, but they have many dimensions. How does our brain combine different reward dimensions? In this study, now out in @naturecomms.bsky.social, we discovered that amygdala neurons flexibly encode reward probability and magnitude, and its risk. s.gwdg.de/qsx23R 1/5

Dynamic coding and sequential integration of multiple reward attributes by primate amygdala neurons - Nature Communications The amygdala assigns value to stimuli, yet how its neurons process different value components is unclear. Here the authors show that monkey amygdala neurons respond to different reward attributes and ...

New paper in @naturecomms.bsky.social from @raymundobaez.bsky.social’s group @primatenzentrum.bsky.social shows primate amygdala neurons flexibly encode reward probability & magnitude. Some signal probability alone, others combine both into value and risk signals for decision-making
s.gwdg.de/qsx23R

We show action-effect latencies don't affect perceived loudness, but long latencies reduce the sense of agency. This contrasts with findings in other sensory domains, suggesting auditory sensory attenuation isn't a necessary outcome of action-effect prediction and may not reliably measure agency.

Paper alert! Check out our latest work by Elisabeth Lindner et. al. published in Consciousness and Cognition: "Temporal action-effect prediction does not affect perceived loudness, but the sense of agency".
www.sciencedirect.com/science/arti...

Am 12.3. schließen wir unsere Podiumsdiskussionsreihe "Interaktion neu Denken" mit einer Veranstaltung zum Thema First Generation Academics. Wir wollen darüber sprechen, wieso das Elternhaus wissenschaftliche Karrierewege beeinflusst.

Alle Interessierten sind herzlich eingeladen - Eintritt frei

PrimateNeurobiology 2025
For the 14th PrimateNeurobiology Meeting (www.dpz.eu/en/events/pn...), we will meet in Göttingen, and we hope to welcome you to this event, which will take place from April 2nd to 4th, 2025.

Curious about the learning processes behind controlling neuroprostheses? In a recent interview on the RBB radio program "Die Profis," Alexander Gail discusses these mechanisms and highlights findings from our latest paper. Listen to the full interview in German here:
www.radioeins.de/programm/sen...

The sensorimotor remapping required to implement an abstract task rule occurs within the existing repertoire of neural dynamics, while compensating for perturbed sensory feedback requires exploration of independent neural dynamics in the parietal cortex. 3/3

Context-dependent mapping of sensory input onto motor output is key for goal-directed behavior. We found that the brain implements this mapping either with or without reconfiguring parietal sensorimotor networks, depending on the type of behavioral context. 2/3

Sensorimotor environment but not task rule reconfigures population dynamics in rhesus monkey posterior parietal cortex - Nature Communications Context-dependent mapping of sensory input onto motor output is key for goal-directed behavior. Here, the authors show that the brain achieves this mapping with or without reconfiguring parietal senso...

Hello BlueSky! Happy to share our latest work by Hao Guo, Shengbing Kuang, and Alexander Gail published today in @naturecomms.bsky.social:
"Sensorimotor environment but not task rule reconfigures population dynamics in rhesus monkey posterior parietal cortex" 1/3 s.gwdg.de/cn7VpU