Pan Lin1, Simon Robinson1, Jorge
Jovicich1,2
1Center for Mind/Brain Sciences,
University of Trento, Trento, TN, Italy; 2Department of Cognitive
and Education Sciences, University of Trento, TN, Italy
Recently
the task independent deactivation (TID) properties of the default mode
network (DMN) have attracted increased attention in the neuroscience
community because of their potential functional interpretations. TID refers
to a decrease in brain activity during an active task relative to a baseline.
However, most deactivation studies have used one or only a few cognitive
tasks in the same subjects, which makes difficult the study TID features. In
this study a series of different cognitive systems (language, memory,
emotion, mathematics and mental rotation) were tested in a group of subjects
to investigate the TID characteristics in DMN, specifically in terms of
spatial differences across the various tasks.