Monthly Archives: October 2014

Focal epileptic crisis

Focal epileptic crisis originate from restricted areas of the brain. Thus, these crisis manifest with specific clinical features that are the consequences of the excitability of those regions. Recognizing such clinical features and localizing them in the brain could be very … Continue reading

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Faces with no identity (prosopagnosia)

Acquired prosopagnosia (or face blindness) is the name of that rare syndrome (generally presenting, but not only, after stroke) affecting individuals who cannot recognize no more familiar faces or learn to recognize new faces. For example, these patients cannot differentiate … Continue reading

Posted in Cognition and Behavior, Stroke | Leave a comment

Philosophical zombies exist

Seeing and being aware of seeing require both intact visual perception and adequate insight of that perception itself. Patients with cerebral or acquired achromatopsia (color blindness) after damage of the color area (V4 and related visual areas on the ventral … Continue reading

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Propositional versus Non-Propositional speech

Propositional speech is volitional and requires conscious mental effort in manipulating linguistic segments that have to be assembled to express meaningful ideas.  Thus, propositional speech relies on language-related neural systems of controlled and intentional information processes. Non-propositional speech (i.e. recites … Continue reading

Posted in Aphasia, Cognition and Behavior | 1 Comment