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document
The neural correlates of semantic richness : evidence from an fMRI study of word learning . We investigated the neural correlates of concrete nouns with either many or few semantic features . A group of 21 participants underwent two days of training and were then asked to categorize 40 newly learned words and a set of matched familiar words as living or nonliving in an MRI scanner . Our results showed that the most reliable effects of semantic richness were located in the left angular gyrus ( AG ) and middle temporal gyrus ( MTG ) , where activation was higher for semantically rich than poor words . Other areas showing the same pattern included bilateral precuneus and posterior cingulate gyrus . Our findings support the view that AG and anterior MTG , as part of the multimodal network , play a significant role in representing and integrating semantic features from different input modalities . We propose that activation in bilateral precuneus and posterior cingulate gyrus reflects interplay between AG and episodic memory systems during semantic retrieval .
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Intervention_Educational
training
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Intervention_Physical
matched familiar words as living or nonliving in an MRI scanner
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Outcome_Physical
most reliable effects of semantic richness
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Outcome_Physical
located in the left angular gyrus ( AG )
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Outcome_Physical
middle temporal gyrus ( MTG )
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Outcome_Physical
integrating semantic features
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Participant_Sample-size
21