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Topic: optogenetic manipulations

Seminar
4 seminars

In Electrophysiology and Neuroscience

Seminar · Optogenetics

Manipulating single-unit theta phase-locking with PhaSER: An open-source tool for real-time phase estimation and manipulation

Zoe Christenson-Wick · Mount Sinai School of Medicine, NY, USA

Tue, May 9, 2023 · 04:00 UTC

Zoe has developed an open-source tool PhaSER, which allows her to perform real-time oscillatory phase estimation and apply optogenetic manipulations at precise phases of hippocampal theta during high-density electrophysiological recordings in head-fixed mice while they navigate a virtual environment. The precise timing of single-unit spiking relative to network-wide oscillations (i.e., phase locking) has long been thought to maintain excitatory-inhibitory homeostasis and coordinate cognitive processes, but due to intense experimental demands, the causal influence of this phenomenon has never b

Seminar · Neuroscience

From single cell to population coding during defensive behaviors in prefrontal circuits

Cyril Herry · Neurocentre Magendie, Inserm, Université de Bordeaux

Fri, Feb 11, 2022 · 11:30 UTC

Coping with threatening situations requires both identifying stimuli predicting danger and selecting adaptive behavioral responses in order to survive. The dorso medial prefrontal cortex (dmPFC) is a critical structure involved in the regulation of threat-related behaviour, yet it is still largely unclear how threat-predicting stimuli and defensive behaviours are associated within prefrontal networks in order to successfully drive adaptive responses. Over the past years, we used a combination we used a combination of extracellular recordings, neuronal decoding approaches, and state of the art

Seminar · Computational Neuroscience

Dynamical population coding during defensive behaviours in prefrontal circuits

Cyril Herry · University of Bordeaux

Thu, Jul 1, 2021 · 23:00 UTC

Coping with threatening situations requires both identifying stimuli predicting danger and selecting adaptive behavioral responses in order to survive. The dorso medial prefrontal cortex (dmPFC) is a critical structure involved in the regulation of threat-related behaviour, yet it is still largely unclear how threat-predicting stimuli and defensive behaviours are associated within prefrontal networks in order to successfully drive adaptive responses. To address these questions, we used a combination of extracellular recordings, neuronal decoding approaches, and optogenetic manipulations to sho

Seminar · Neuroscience

Dynamical population coding during defensive behaviours in prefrontal circuits

Cyril Herry · Neurocentre Magendie

Mon, Nov 23, 2020 · 11:00 UTC

Coping with threatening situations requires both identifying stimuli predicting danger and selecting adaptive behavioral responses in order to survive. The dorso medial prefrontal cortex (dmPFC) is a critical structure involved in the regulation of threat-related behaviour, yet it is still largely unclear how threat-predicting stimuli and defensive behaviours are associated within prefrontal networks in order to successfully drive adaptive responses. To address these questions, we used a combination of extracellular recordings, neuronal decoding approaches, and optogenetic manipulations to sho