Thank you for attending #SfN23

Thank you for attending #SfN23

Thank you for attending #SfN23

Professor John J. Hopfield at Princeton University and Professor Geoffrey E. Hinton at the University of Toronto, Canada, were awarded the 2024 Nobel Prize in Physics for their foundational discoveries and inventions that enable machine learning with artificial neural networks. Hopfield was the recipient of the 2012 SfN Swartz Prize for Theoretical and Computational Neuroscience.

The integration of olfactory and spatial information is critical for guiding animal behavior. The lateral entorhinal cortex (LEC) is reciprocally interconnected with cortical areas for olfaction and the hippocampus and thus ideally positioned to encode odor–place associations. Here, we used miniendoscopes to record neural activity in the mouse piriform cortex (PCx) and LEC. We show that in head-fixed mice, odor identity could be decoded from LEC ensembles but less accurately than from PCx. In male mice freely navigating a linear track, LEC ensemble activity at the odor ports was dominated by spatial information. Spatial position along the linear track could be decoded from LEC and PCx activity; however, PCx but not LEC exhibited strong behavior-driven modulation of positional information. Together, our data reveal that information about odor cues and spatial context is differentially encoded along the PCx–LEC axis.

Current models of motor control emphasize the critical role of sensory feedback, as demonstrated by movement coordination deficits following sensory impairment. When both vision and touch are available for object-oriented manual behaviors, they serve distinct roles; vision guides the execution of planned movements, while touch provides more direct feedback on hand–object interactions. The impact of losing somatosensory feedback on eye–hand coordination during dexterous object manipulation tasks has not been thoroughly studied. Conceivably, vision is recruited to compensate for the feedback lost when touch is abolished based on the dexterity demands of the behavior. To investigate this, we tested healthy participants of either sex on a manual dexterity task requiring the movement of small metal pegs, both before and after the administration of digital anesthesia, which selectively abolished cutaneous sensations in the fingertips while preserving motor function. We recorded participants' gaze and hand positi...

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