We would like to invite you on the next C-lab meeting on Monday, 13th of January at 12:00 in the room 5.01. The invited speaker is dr Katarzyna Jurewicz with the presentation titled “Intrinsic connectivity networks of the brain and the case of object-based attention”. The abstract of the presentation is below.
Intrinsic connectivity networks of the brain and the case of object-based attention
Intrinsic connectivity networks have been shown to constitute major units of functional organisation of the human brain. Studies of visual attention commonly refer to two mechanisms involved in attention allocation - one related to “top-down”, volitional control and the second (“stimulus-driven”), related to reorienting towards distinctive, relevant stimuli appearing in the environment. It is also accepted that these mechanisms are supported by two separate brain networks: dorsal attention network (DAN) for directing and maintaining focus of attention and ventral attentional network (VAN) for attentional updating. In my research I wanted to verify, if the same networks underlie non-spatial reorienting of attention. To this end, an experimental paradigm was modelled on the original Posner task, but cued category of the object, instead of its location. Task-evoked activations were evaluated with reference to the main large-scale brain networks, recreated from resting-state activity of individuals.