Ryding, E Silent speech activates prefrontal cortical regions asymmetrically, as well as speech-related areas in the dominant hemisphere. [electronic resource] - Brain and language Mar 1996 - 435-51 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0093-934X Standard No.: 10.1006/brln.1996.0023 doi Subjects--Topical Terms: AdultAgedDominance, CerebralFemaleFrontal Lobe--blood supplyHumansMaleMiddle AgedRegional Blood FlowSpeech--physiology