![Sequential Processing of Lexical, Grammatical, and Phonological Information Within Broca’s Area
Evidence for modular computation of language! [Reference via loscheiner]
Fig. 2. (A) Main results: sequential processing of lexical, grammatical, and phonological information in overlapping circuits. (Top) Neural activity recorded from several channels in Broca’s area (patient A, Brodmann area 45) shows three LFP components that were consistently evoked by the task (~200, ~320, and ~450 ms). (Bottom) The ~200-ms component is sensitive to word frequency but not word length, suggesting that it indexes a cognitive process such as lexical identification, not simply perception. Stacked waveforms (top and bottom) adopt the axes noted on the first waveform. (B) At ~320 ms, the LFP pattern suggests inflectional processing. (C) At ~450 ms, in a channel 5 mm distant, the complementary pattern suggests phonological processing. (Inset) MRI slices from this patient, annotated with the anatomical location of A4, the contact in common to the two channels reported here. Statistical significance: **** (P < .0001), *** (P < .001), ** (P < .01) (t test, one tail, two-sample, equal variance). Box arrows (bottom) indicate linguistic processing stages, which may be interposed among other stages not addressed here.
Emphasis mine, because it’s those gaps/”interfaces” between major language modules that we theoretical linguists need to investigate.](http://24.media.tumblr.com/tumblr_krmbd6aBYo1qznraho1_500.jpg "Sequential Processing of Lexical, Grammatical, and Phonological Information Within Broca’s Area
Evidence for modular computation of language! [Reference via loscheiner]
Fig. 2. (A) Main results: sequential processing of lexical, grammatical, and phonological information in overlapping circuits. (Top) Neural activity recorded from several channels in Broca’s area (patient A, Brodmann area 45) shows three LFP components that were consistently evoked by the task (~200, ~320, and ~450 ms). (Bottom) The ~200-ms component is sensitive to word frequency but not word length, suggesting that it indexes a cognitive process such as lexical identification, not simply perception. Stacked waveforms (top and bottom) adopt the axes noted on the first waveform. (B) At ~320 ms, the LFP pattern suggests inflectional processing. (C) At ~450 ms, in a channel 5 mm distant, the complementary pattern suggests phonological processing. (Inset) MRI slices from this patient, annotated with the anatomical location of A4, the contact in common to the two channels reported here. Statistical significance: **** (P < .0001), *** (P < .001), ** (P < .01) (t test, one tail, two-sample, equal variance). Box arrows (bottom) indicate linguistic processing stages, which may be interposed among other stages not addressed here.
Emphasis mine, because it’s those gaps/”interfaces” between major language modules that we theoretical linguists need to investigate.")
Sequential Processing of Lexical, Grammatical, and Phonological Information Within Broca’s Area
Evidence for modular computation of language! [Reference via loscheiner]
Fig. 2. (A) Main results: sequential processing of lexical, grammatical, and phonological information in overlapping circuits. (Top) Neural activity recorded from several channels in Broca’s area (patient A, Brodmann area 45) shows three LFP components that were consistently evoked by the task (~200, ~320, and ~450 ms). (Bottom) The ~200-ms component is sensitive to word frequency but not word length, suggesting that it indexes a cognitive process such as lexical identification, not simply perception. Stacked waveforms (top and bottom) adopt the axes noted on the first waveform. (B) At ~320 ms, the LFP pattern suggests inflectional processing. (C) At ~450 ms, in a channel 5 mm distant, the complementary pattern suggests phonological processing. (Inset) MRI slices from this patient, annotated with the anatomical location of A4, the contact in common to the two channels reported here. Statistical significance: **** (P < .0001), *** (P < .001), ** (P < .01) (t test, one tail, two-sample, equal variance). Box arrows (bottom) indicate linguistic processing stages, which may be interposed among other stages not addressed here.
Emphasis mine, because it’s those gaps/”interfaces” between major language modules that we theoretical linguists need to investigate.
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