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Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
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|Brain: Intraparietal sulcus|
|Lateral surface of left cerebral hemisphere, viewed from the side. (Intraparietal sulcus visible at upper right, running horizontally.)|
|Principal fissures and lobes of the cerebrum viewed laterally. (Fissures not labeled, but parietal lobe is colored yellow.)|
|Gray's||subject #189 822|
|Part of||Parietal lobe|
The intraparietal sulcus (IPS) is located on the lateral surface of the parietal lobe, and consists of an oblique and a horizontal portion. The IPS contains a series of functionally distinct subregions that have been intensively investigated using both single cell neurophysiology in primates and human functional neuroimaging. Its principal functions are related to perceptual-motor coordination (for directing eye movements and reaching) and visual attention.
Behavioral studies suggest that the IPS is associated with impairments of basic numerical magnitude processing and that there is a pattern of structural and functional alternations in the IPS and in the PFC in dyscalculia. Children with developmental dyscalculia were found to have less gray matter in the left IPS.
Five regions of the intraparietal sulcus (IPS): anterior, lateral, ventral, caudal, and medial
All of these areas have projections to the frontal lobe for executive control.
Activity in the intraparietal sulcus has also been associated with the learning of sequences of finger movements. (http://jn.physiology.org/content/88/4/2035.full)
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|This neuroscience article is a stub. You can help Wikipedia by expanding it.|