Speech perception is often seen as a passive process guided by physical stimulus properties. However, ongoing brain dynamics could influence the subsequent perceptual organization of the speech, to an as yet unknown extent. ...

This review considers recent evidence showing that cells in three regions of the reticular activating system (RAS) exhibit gamma band activity, and describes the mechanisms behind such manifestation. Specifically, we discuss ...

A mycelial beta-glucosidase from the thermophilic mold Humicola insolens was purified and biochemically characterized. The enzyme showed carbohydrate content of 21% and apparent molecular mass of 94 kDa, as estimated by ...

The beta-xylosidase from was purified to homogeneity by a rapid and inexpensive procedure involving ammonium sulphate fractionation and molecular exclusion chromatography. Sodium dodecyl sulphate-polyacrylamide gel ...

The beta-xylosidase from was purified to homogeneity by a rapid and inexpensive procedure involving ammonium sulphate fractionation and molecular exclusion chromatography. Sodium dodecyl sulphate-polyacrylamide gel ...

Selective attention depends on goal-directed and stimulus-driven modulatory factors, each relayed by different brain rhythms. Under certain circumstances, stress-related states can change the balance between goal-directed ...