BEGIN:VCALENDAR VERSION:2.0 PRODID:-//events.la.psu.edu//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:STANDARD DTSTART:20201101T020000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU END:STANDARD BEGIN:DAYLIGHT DTSTART:20200308T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:16844-38a4fc42a77ced5eb22f6fa1976b2092@events.la.psu.edu DTSTAMP:20260609T062458Z DTSTART;TZID=America/New_York:20180406T090000 DTEND;TZID=America/New_York:20180406T103000 SUMMARY:CLS Anniversary Alumni Speaker Series - Roxana Botezatu (University of M issouri) Converging Evidence from Bilingualism and Aphasia Reveals a Lin k Between Lexical Selection in Comprehension and Production DESCRIPTION:Converging Evidence from Bilingualism and Aphasia Reveals a Link \nBetween Lexical Selection in Comprehension and Production\n\nBili ngualism and aphasia have been traditionally employed as separate platfo rms for investigating the cognitive mechanisms underlying language produ ction and comprehension. In the present study we take an innovative appr oach to analyze spoken word recognition as a function of production flue ncy in second language (L2) learners and individuals with aphasia for a common purpose: to evaluate whether resolving lexical competition during spoken word comprehension engages the same mechanisms as selecting an i ndividual word from a set of candidates for production. We test this hyp othesis in a novel way by examining whether narrative speech production fluency is associated with sensitivity to phonological neighborhood dens ity -- a robust measure of resolving lexical competition during speech r ecognition that is otherwise unrelated to fluent language production. En glish learners of Spanish (N=24)\, individuals with aphasia (N=19)\, age -matched monolingual participants (N=24) and neurologically intact older adults (N=15) identified spoken English words presented in moderate noi se. English learners of Spanish varied on measures of L2-Spanish profici ency. Individuals with aphasia varied on measures of fluency and recepti ve vocabulary\, in the absence of comprehension deficits. The words eith er came from high-density neighborhoods (e.g.\, BAG) or low-density neig hborhoods (e.g.\, BALL). Age-matched control participants exhibited the standard inhibitory effect of phonological neighborhood density on respo nse times: slower recognition of spoken words from denser neighborhoods. Among English learners of Spanish\, this inhibitory effect of phonologi cal neighborhood density was greater for learners with lower L2 fluency. Among participants with aphasia\, the inhibitory effect of phonological neighborhood density was similarly greater for participants with lower fluency. Additionally\, the neighborhood effect was larger for individua ls with aphasia with better receptive vocabulary knowledge\, indicating that the fluency effect was not due to general lexical deficits. These c onverging results from bilingualism and aphasia are consistent with the view that language production and comprehension share a lexical selectio n mechanism.\n\n \;\n\nFor more details: https://events.la.psu.edu/e vent/cls-anniversary-alumni-speaker-series-roxana-botezatu-university-of -missouri-converging-evidence-from-bilingualism-and-aphasia-reveals-a-li nk-between-lexical-selection-in-comprehension-and-produc/ X-ALT-DESC;FMTTYPE=text/html:

Converging Evidence from Bilingualism and Ap hasia Reveals a Link

Between Lexical Selection in Comprehension and Production


Bilingualism and aphasia have been traditionally empl oyed as separate platforms for investigating the cognitive mechanisms un derlying language production and comprehension. In the present study we take an innovative approach to analyze spoken word recognition as a func tion of production fluency in second language (L2) learners and individu als with aphasia for a common purpose: to evaluate whether resolving lex ical competition during spoken word comprehension engages the same mecha nisms as selecting an individual word from a set of candidates for produ ction. We test this hypothesis in a novel way by examining whether narra tive speech production fluency is associated with sensitivity to phonolo gical neighborhood density -- a robust measure of resolving lexical comp etition during speech recognition that is otherwise unrelated to fluent language production. English learners of Spanish (N=24), individuals wit h aphasia (N=19), age-matched monolingual participants (N=24) and neurol ogically intact older adults (N=15) identified spoken English words pres ented in moderate noise. English learners of Spanish varied on measures of L2-Spanish proficiency. Individuals with aphasia varied on measures o f fluency and receptive vocabulary, in the absence of comprehension defi cits. The words either came from high-density neighborhoods (e.g., BAG) or low-density neighborhoods (e.g., BALL). Age-matched control participa nts exhibited the standard inhibitory effect of phonological neighborhoo d density on response times: slower recognition of spoken words from den ser neighborhoods. Among English learners of Spanish, this inhibitory ef fect of phonological neighborhood density was greater for learners with lower L2 fluency. Among participants with aphasia, the inhibitory effect of phonological neighborhood density was similarly greater for particip ants with lower fluency. Additionally, the neighborhood effect was large r for individuals with aphasia with better receptive vocabulary knowledg e, indicating that the fluency effect was not due to general lexical def icits. These converging results from bilingualism and aphasia are consis tent with the view that language production and comprehension share a le xical selection mechanism.

 


For more details: https://events.la.psu.edu/event/cls-ann iversary-alumni-speaker-series-roxana-botezatu-university-of-missouri-co nverging-evidence-from-bilingualism-and-aphasia-reveals-a-link-between-l exical-selection-in-comprehension-and-produc/

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