scholarly journals Spoken Word Processing in Bilingual Older Adults: Assessing Within-and Cross-Language Competition using the Visual World Task

2019 ◽  
Author(s):  
Debra Titone ◽  
Jason Gullifer ◽  
Shari Baum

We investigated whether bilingual older adults experience within- and cross-language competition during spoken word recognition similarly to younger adults matched on age of second language (L2) acquisition, objective and subjective L2 proficiency, and current L2 exposure. In a visual world eye-tracking paradigm, older and younger adults, who were French-dominant or English-dominant English-French bilinguals, listened to English words, and looked at pictures including the target (field), a within-language competitor (feet) or cross-language (French) competitor (fille, “girl”), and unrelated filler pictures while their eye movements were monitored. Older adults showed evidence of greater within-language competition as a function of increased target and competitor phonological overlap. There was some evidence of age-related differences in cross-language competition, however, it was quite small overall and varied as a function of target language proficiency. These results suggest that greater within- and possibly cross-language lexical competition during spoken word recognition may underlie some of the communication difficulties encountered by healthy bilingual older adults.

Author(s):  
Debra Titone ◽  
Julie Mercier ◽  
Aruna Sudarshan ◽  
Irina Pivneva ◽  
Jason Gullifer ◽  
...  

Abstract We investigated whether bilingual older adults experience within- and cross-language competition during spoken word recognition similarly to younger adults matched on age of second language (L2) acquisition, objective and subjective L2 proficiency, and current L2 exposure. In a visual world eye-tracking paradigm, older and younger adults, who were French-dominant or English-dominant English-French bilinguals, listened to English words, and looked at pictures including the target (field), a within-language competitor (feet) or cross-language (French) competitor (fille, “girl”), and unrelated filler pictures while their eye movements were monitored. Older adults showed evidence of greater within-language competition as a function of increased target and competitor phonological overlap. There was some evidence of age-related differences in cross-language competition, however, it was quite small overall and varied as a function of target language proficiency. These results suggest that greater within- and possibly cross-language lexical competition during spoken word recognition may underlie some of the communication difficulties encountered by healthy bilingual older adults.


2015 ◽  
Vol 19 (2) ◽  
pp. 376-399 ◽  
Author(s):  
JULIE MERCIER ◽  
IRINA PIVNEVA ◽  
DEBRA TITONE

We investigated whether speaking in one language affects cross- and within-language activation when subsequently switching to a task performed in the same or different language. English–French bilinguals (L1 English, n = 29; L1 French, n = 28) were randomly assigned to a prior language context condition consisting of a spontaneous production task in English (the no-switch group) or in French (the switch group). Participants then performed an English spoken language comprehension task using the visual world method. The key result was that the switch group showed less evidence of cross-language competition than the no-switch group, consistent with the notion of an active inhibition of a prior language in the switch group. These data suggest that proficient bilinguals can globally suppress a non-target language, whether it is L1 or L2, though doing so requires cognitive resources that may be diverted from other demands, such as controlling within-language competition.


2013 ◽  
Vol 17 (1) ◽  
pp. 89-117 ◽  
Author(s):  
JULIE MERCIER ◽  
IRINA PIVNEVA ◽  
DEBRA TITONE

We investigated whether individual differences in inhibitory control relate to bilingual spoken word recognition. While their eye movements were monitored, native English and native French English–French bilinguals listened to English words (e.g., field) and looked at pictures corresponding to the target, a within-language competitor (feet), a French cross-language competitor (fille “girl”), or both, and unrelated filler pictures. We derived cognitive and oculomotor inhibitory control measures from a battery of inhibitory control tasks. Increased cognitive inhibitory control was linked to less within-language competition for all bilinguals, and less cross-language competition for native French low-English-exposure bilinguals. Increased oculomotor inhibitory control was linked to less within-language competition for all native French bilinguals, and less cross-language competition for native French low-English-exposure bilinguals. The results extend previous findings (Blumenfeld & Marian, 2011), and suggest that individual differences in inhibitory control relate to bilingual spoken word processing.


2019 ◽  
Vol 72 (11) ◽  
pp. 2574-2583 ◽  
Author(s):  
Julie Gregg ◽  
Albrecht W Inhoff ◽  
Cynthia M Connine

Spoken word recognition models incorporate the temporal unfolding of word information by assuming that positional match constrains lexical activation. Recent findings challenge the linearity constraint. In the visual world paradigm, Toscano, Anderson, and McMurray observed that listeners preferentially viewed a picture of a target word’s anadrome competitor (e.g., competitor bus for target sub) compared with phonologically unrelated distractors (e.g., well) or competitors sharing an overlapping vowel (e.g., sun). Toscano et al. concluded that spoken word recognition relies on coarse grain spectral similarity for mapping spoken input to a lexical representation. Our experiments aimed to replicate the anadrome effect and to test the coarse grain similarity account using competitors without vowel position overlap (e.g., competitor leaf for target flea). The results confirmed the original effect: anadrome competitor fixation curves diverged from unrelated distractors approximately 275 ms after the onset of the target word. In contrast, the no vowel position overlap competitor did not show an increase in fixations compared with the unrelated distractors. The contrasting results for the anadrome and no vowel position overlap items are discussed in terms of theoretical implications of sequential match versus coarse grain similarity accounts of spoken word recognition. We also discuss design issues (repetition of stimulus materials and display parameters) concerning the use of the visual world paradigm in making inferences about online spoken word recognition.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Kristin J. Van Engen ◽  
Avanti Dey ◽  
Nichole Runge ◽  
Brent Spehar ◽  
Mitchell S. Sommers ◽  
...  

This study assessed the effects of age, word frequency, and background noise on the time course of lexical activation during spoken word recognition. Participants (41 young adults and 39 older adults) performed a visual world word recognition task while we monitored their gaze position. On each trial, four phonologically unrelated pictures appeared on the screen. A target word was presented auditorily following a carrier phrase (“Click on ________”), at which point participants were instructed to use the mouse to click on the picture that corresponded to the target word. High- and low-frequency words were presented in quiet to half of the participants. The other half heard the words in a low level of noise in which the words were still readily identifiable. Results showed that, even in the absence of phonological competitors in the visual array, high-frequency words were fixated more quickly than low-frequency words by both listener groups. Young adults were generally faster to fixate on targets compared to older adults, but the pattern of interactions among noise, word frequency, and listener age showed that older adults’ lexical activation largely matches that of young adults in a modest amount of noise.


2000 ◽  
Vol 43 (4) ◽  
pp. 915-925 ◽  
Author(s):  
Arthur Wingfield ◽  
Kimberly C. Lindfield ◽  
Harold Goodglass

It is well known that spoken words can often be recognized from just their onsets and that older adults require a greater word onset duration for recognition than young adults. In this study, young and older adults heard either just word onsets, word onsets followed by white noise indicating the full duration of the target word, or word onsets followed by a low-pass-filtered signal that indicated the number of syllables and syllabic stress (word prosody) in the absence of segmental information. Older adults required longer stimulus durations for word recognition under all conditions, with age differences in hearing sensitivity contributing significantly to this age difference. Within this difference, however, word recognition was facilitated by knowledge of word prosody to the same degree for young and older adults. These findings suggest, first, that listeners can detect and utilize word stress in making perceptual judgments and, second, that this ability remains spared in normal aging.


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