a) The blue vertical lines drawn through the whole brains indicate the location of the cross-sectional slices shown below in part (b). Peak activations within the right cerebellar dentate are shown for encoding and retrieval phases of the Sternberg task (6-target executive versus 6-target match), p <. This finding underscored the significant contribution of the pre-SMA/ventral dentate pathway-observed several seconds prior to any motor response to the probe-to executive verbal working memory.Ĭopyright (c) 2009 Elsevier Srl. Finally, activity during the maintenance phase in BA 9, anterior insula, pre-SMA and ventral dentate predicted subsequent accuracy of response to the probe during the retrieval phase. A functional dissociation between the dorsal "motor" dentate and "cognitive" ventral dentate agrees with neuroanatomical tract tracing studies that have demonstrated separate neural pathways involving each region of the dentate: the dorsal dentate projects to frontal motor areas (including the SMA), and the ventral dentate projects to frontal cognitive areas (including BA 9/46 and the pre-SMA). This likely represented the manipulation of information and formation of a response. Third, the ventral cerebellar dentate co-activated with anterior prefrontal regions Brodmann Area (BA) 9/46 and the pre-SMA during retrieval. This likely represented the formation of an articulatory (motor) trajectory. Second, the dorsal cerebellar dentate co-activated with the supplementary motor area (SMA) during encoding. First, cerebro-cerebellar activity increased as a function of executive load. Neural activity during the match and executive conditions was compared during each phase of the task. In the "executive condition", subjects created a new probe by counting two alphabetical letters forward (e.g., f->h) and decided whether the new probe matched the target letters. In the "match condition", subjects decided whether the probe matched the target letters. A single probe letter was presented during the retrieval phase. In both versions subjects were presented with two or six target letters during the encoding phase, which were held in memory during the maintenance phase. ![]() Spine may show signs of wear.Contributions of cerebro-cerebellar function to executive verbal working memory were examined using event-related functional magnetic resonance imaging (fMRI) while 16 subjects completed two versions of the Sternberg task. " - better world books ltd Dunfermline, United KingdomĪmazon Marketplace no ratings available ships from United States Used book that is in clean, average condition without any missing pages. Former library book may include library markings. " - better world books Indiana, United StatesĪbebooks Marketplace ships from United Kingdom "Used book that is in clean, average condition without any missing pages. We ship orders daily and Customer Service is our top priority! " - hpbred United StatesĪbebooks Marketplace ships from United States May have some wear or writing/highlighting. ![]() "Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. ![]() " - thriftbooksbaltimore United StatesĪlibris Marketplace ships from United States X-Men and the Battle of the Cerebro! (Marvel Super Heroes Collector's Club) by Scott Ciencin Paperback Published in 2006 ISBN-10: 1-7 / 0439900417 ISBN-13: 978-1-6 / 9780439900416Īlibris Marketplace Best Value! ships from United States Prime B&N Member Books A Million Club eCampus Member Indigo.ca iRewards Fye.com Member Filters: Hide All Used Hide Unspecified Hide Acceptable Hide Good Hide Very Good Hide Like New Hide Rentals Hide Digital Hide Variants Hide Backorders Store Languages: « Less Settings Discounts: Include Coupons Include Offers member of.
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