Acetylcholine, Dopamine, and Glutamate measured in three brain areas with a new SPME-probe

Our new paper shows reliable Multi-Neuromodulator measurements in the awake nonhuman primate in prefrontal cortex, premotor cortex and the basal ganglia using a new chemical sensing probe. The probe uses principles of Solid-Phase-Microextraction and is a development by the SPME pioneer and collaborator Prof. Janusz Pawliszyn from the University of Waterloo. The paper can be downloaded here.

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Inter-areal neural routing states emerge and switch during oscillatory bursts and with attention

We have a new major finding published at Neuron. We found that spiking in different areas (ACC, Striatum, LPFC) engage in ~20ms wide correlations, and that this coordinated activity has systematic time lags that correspond to the anatomical connectivity. These ‘baseline routing states’ are amplified during beta bursts, and switch directionality (between ACC and PFC) […]

Phase-specific Activation Induces Latent Connectivity Changes

A recent paper provides rare causal evidence that phase-specific stimulation during beta oscillation bursts lead to transient changes in effective (latent) connectivity. This finding and its potentially widespread implications are discussed in our paper Womelsdorf T, Hoffman K (2018) Latent Connectivity: Neuronal Oscillations Can Be Leveraged for Transient Plasticity. Current Biology. 28(16):R879-R882..

Large-scale support awarded for advanced Neuro-Behavioral Monitoring

Thilo Womelsdorf, Kari Hoffman and eight more members of a large-scale initiative received a large-scale infrastructure support grant from the Canada Foundation for Innovation, amounting to $3.1M federal support. This extraordinary award allows establishing – in Toronto- an advanced neuroscience infrastructure for conducting research of brain activity and behavior close to real world settings. For a press release see […]