Determinants and mechanisms of attentional modulation of neural processing

摘要: This review contrasts the most-studied variety of attention, visuospatial with several types nonspatial visual attention. We: 1) discuss manner in which spatial and varieties attention are experimentally defined, ecological validity paradigms they studied, 2) compare differing effects on neural processing, 3) operates within framework an anatomical hierarchy, as well 4) how relates to temporal dynamics 5) describe cellular circuits physiological processes that appear be involved effects, 6) relationship attentional physiology perceptual cognitive 7) consider strengths limitations current models selective Throughout, we attempt integrate findings monkey human studies whenever possible. We have three main conclusions. First, two models, Neural Specificity Model Harter colleagues Feature Similarity Gain Treue best incorporate relation both Significantly, these explicitly note specific neuronal components used modulation processing flexible determined by task demands. Second, evidence also provides strong bases for deriving testable hypotheses about brain mechanisms utilized Cellular processes, neurotransmitter can should incorporated into our Finally, it is increasingly evident analyze patterns modulation, across areas. These provide critical information