Psychology

Human cognitive neuroscience seminar

Speaker: Andrés Canales-Johnson (University of Cambridge)

Title: Dissociable neural information dynamics for conscious contents and cognitive control

Abstract: At any given moment, we experience a perceptual scene as a single whole and yet we may distinguish a variety of objects within it. This phenomenon instantiates the integration and differentiation properties of conscious perception. For different contents in mind when the same scene is presented (bistable perception), the integrated percept was associated with an increase in information integration and a decrease in information differentiation across frontoparietal regions, whereas the opposite pattern was observed for the differentiated percept. These patterns of dissociation were convergent in scalp EEG and intracranial recordings (LFPs) in humans. This reconfiguration of large-scale brain networks is seen in the different contents of consciousness when the external world does not change. Convergently, we have also observed a neural information reconfiguration when in a cognitive control task the stimuli does not change but the level of alertness wanes. The brain markers of conflict resolution change from local processing to distributed information processing with drowsiness but the behavioural markers remain the same. We propose that the flexibility of brain systems may have different strategies to solve internally driven versus externally driven challenging situations.

Contact

The seminars are organised by the Human Cognitive Neuroscience research group. For further information, or if you would like to join the e-mail list for these seminars, please email Andreea Stamate or Carolane Hélin.

Human cognitive neuroscience

Andreea Stamate

Carolane Hélin

 

Renzo Lanfranco (this guest talk) 

Feb 22 2019 -

Human cognitive neuroscience seminar

2019-02-22: Dissociable neural information dynamics for conscious contents and cognitive control

Room LG.09, David Hume Tower, George Square, Edinburgh, EH8 9LX