| A | B |
| some left hemisphere functions | analysis of right visual filed, stereognosis (tactile), lexical and syntactic language, writing, speech |
| some right hemisphere functions | analysis of left visual field, stereognosis, emotional coloring of language, spatial abilities, rudimentary speech |
| aphasia | reduced ability to comprehend and produce language but ability to perceive and produce words is intact |
| Broca's aphasia | lesion to left frontal lobe. inability to produce language-grammar and syntax disrtupted: halting speech, tendency to repeat phrases or words, disorder syntax and trammer, disorderted structure of individual words, comprehension intact |
| Wernicke's aphasia | lesion to left temporal lobe. difficulty understanding spoken language: fluent speech, little spontaneous repetition, syntax and grammar adequate, contrive or inappropriate words, comprehension not intact. |
| left handers appear to: | have more accidents, have left hemispheric dominance in language, but right dominance is more common, be better at sports |
| using left hemisphere split brain patients | were able to name objects held in the right hand without difficulty, and object held in the left could not be name |
| using right hemisphere split brain patients.. | most could produce only an indirect description of the object that relied on rudimentary words and phrases rather than the precise lexical symbol for the object (round thing instead of ball); some could not provide any verbal account of what they held in their hand |