Prefrontal cortex hemispheric specialization for categorical and coordinate visual spatial memory

Neuropsychologia
Scott D Slotnick, Lauren R Moo

Abstract

During visual spatial perception of multiple items, the left hemisphere has been shown to preferentially process categorical spatial relationships while the right hemisphere has been shown to preferentially process coordinate spatial relationships. We hypothesized that this hemispheric processing distinction would be reflected in the prefrontal cortex during categorical and coordinate visual spatial memory, and tested this hypothesis using functional magnetic resonance imaging (fMRI). During encoding, abstract shapes were presented in the left or right hemifield in addition to a dot at a variable distance from the shape (with some dots on the shape); participants were instructed to remember the position of each dot relative to the shape. During categorical memory retrieval, each shape was presented centrally and participants responded whether the previously corresponding dot was 'on' or 'off' of the shape. During coordinate memory retrieval, each shape was presented centrally and participants responded whether the previously corresponding dot was 'near' or 'far' from the shape (relative to a reference distance). Consistent with our hypothesis, a region in the left prefrontal cortex (BA10) was preferentially associated with cate...Continue Reading

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Citations

Jan 9, 2009·Laterality·Katie L MeadmoreRomola S Bucks
Mar 5, 2010·Cognitive Neuroscience·Scott D Slotnick, Daniel L Schacter
Jun 9, 2007·Cerebral Cortex·Roi Cohen KadoshAvishai Henik
Jun 15, 2007·Neuroreport·Matthew FinkbeinerAlfonso Caramazza
Jan 14, 2011·Advances in Cognitive Psychology·A K M Rezaul Karim, Haruyuki Kojima
Mar 5, 2014·Proceedings of the National Academy of Sciences of the United States of America·Chris M BirdAnna Franklin
Sep 2, 2008·Brain Research·James K KrogerPhilip N Johnson-Laird
Aug 5, 2009·Brain Research·Ineke J M van der HamAlbert Postma
Aug 12, 2006·Neuropsychologia·Scott D Slotnick, Daniel L Schacter
Mar 11, 2009·Brain Research·Scott D Slotnick
Feb 6, 2010·NeuroImage·Monia CabinioGabriella Cerri
Jan 18, 2014·Psychological Research·Mark P HoldenElizabeth Hampson
Jul 18, 2018·Journal of Neurotrauma·Sarah B RockswoldChristophe Lenglet
May 31, 2019·Frontiers in Computational Neuroscience·Salim M H Al-WasityAleksandra Vuckovic
Oct 8, 2020·PloS One·David J OuelletteTimothy Q Duong
Aug 10, 2021·Somatosensory & Motor Research·Cem Erçalık, Seçil Özkurt

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