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Slip of the tongue

A recent study by Zenzi Griffin found that people who make word substitution mistakes, such as calling a hammer an axe, look at the object just as long before speaking as they do when speaking correctly. The study suggests that speech errors are more indicative of planning issues than attention problems.

SourceAssociation for Psychological Science·JournalPsychological Science·DateDec 8, 2004

Singing in the brain

Researchers taught baby sparrows to sing a complete song using overlapping segments, revealing that memories are stored as distinct phrases. This study provides insights into the physiological basis of language learning in birds and may inform understanding of speech development in humans.

SourceUniversity of Utah·JournalNature·DateDec 8, 2004

Relearning to hear

Researchers found that gradual exposure to frequency-shifted sounds improved subject's ability to comprehend speech in cochlear implants. Brain scans revealed systematic changes in cortical responses after several hours of exposure.