Science takes a good look

Posted on | May 31, 2009 |

shape-recognition visual memory load

In a repeated-measures shape-recognition paradigm, young and old subjects exhib­ited right-hemisphere-left visual-field (RH-LVF) advantage. The young group showed left-hemisphere-right visual-field (LH-RVF) advantage when primed by a visual memory load, but both LH-RVF and RH-LVF interference under heavier  loading. In both visual fields interference occurred at an objectively lighter level of load in old than in young people and the old group began to make errors in verbal tasks at a lighter visual load. In the less efficient brain of the elderly, a lighter load suffices to set up interference.

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