Simultanagnosia: When a Rose Is Not Red

Simultanagnosia: When a Rose Is Not Red

Abstract Information regarding object identity ("what") and spatial location ("where/how to") is largely segregated in visual processing. Under most circumstances, however, object identity and location are linked. We report data from a simultanagnosic patient (K.E.) with bilateral posterior parietal infarcts who was unable to "see" more than one object in an array despite relatively preserved o...

When a Rose Is Not a Rose: A Review of Recent Estimates of Congestion Costs

Bernard C. Lesieutre and Joseph H. Eto Bernard C. Lesieutre is a Staff Scientist at Lawrence Berkeley National Laboratory in Berkeley, California, and is involved with studies of the electric power grid and electricity markets. He received his Ph.D. in Electrical Engineering from the University of Illinois and served on the faculty of Electrical Engineering at M.I.T. between 1993 and 2001. Jose...

[Rose is a rose is a rose].

A rose is a rose is a rose?

This young man presented initially and repeatedly over a period of twenty years with symptoms of irritability, depressed and withdrawn mood, impulsivity, out-of-control behavior, and suicidal ideation and behavior. These symptoms occurred with disabling intensity at ages 3 year, 6 1/2 years, and 8 1/2 years, when he had not yet been adequately diagnosed and treated with appropriate psychopharma...

When a rose is a rose in speech but a tulip in writing.

We report the pattern of performance on language tasks by a neurologically impaired patient, RCM, who makes semantic errors in writing to dictation and in written naming, but makes very few errors at all (and no semantic errors) in spoken naming, oral reading, or spontaneous speech. RCM also shows a significant effect of concreteness on spelling accuracy and other features of so-called "deep dy...