Theta and beta frequency range coherence between anterior cingulate cortex and frontal eye field indexes the successful preparation for anti-saccades and maintenance of working memory content – with larger ACC to FEF direction of granger causal information flow! These important findings is now published in Nature Communications by Sahand Babapoor-Farrokhran and Stefan Everling with contributions from Martin Vinck and our lab – This is a particular important finding as neuronal coordination between prefrontal and anterior cingulate cortex at the identical frequency ranges characterize successful attention shifts and adjustments following errors – thus there is clear link of prefrontal attentional control signalling to the actual implementation of attentional selection in FEF (and parietal) networks – Congratulations for this major achievement ! The article Theta and beta synchrony coordinate frontal eye fields and anterior cingulate cortex during sensorimotor mapping can be downloaded here .
Theta and Beta Frequency
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..
The lab has a new publication showcasing and describing details of Quaddles: A multidimensional 3D object set with parametrically-controlled and customizable features. Quaddles have 5+ feature dimensions, each with multiple possible feature values that can be parametrically morphed, making it possible to generate a near arbitrary number of unique objects. Thanks to Marcus and Milad […]
Effective Connectivity Shows Asymmetries in Resonance and Latencies between Medial and Lateral Prefrontal Cortex Connections
The lab has a first article published about the strength, latency and resonance patterns of connections between the anterior cingulate cortex and lateral prefrontal cortex of the macaque. This work was led by postdoc Veronica Nacher and is published in Brain Structure and Function. The paper identifies a novel electrical microstimulation protocol that can be […]