Using Network Science Measures to Predict the Lexical Decision Performance of Adults Who Stutter

2017 ◽  
Vol 60 (7) ◽  
pp. 1911-1918 ◽  
Author(s):  
Nichol Castro ◽  
Kristin M. Pelczarski ◽  
Michael S. Vitevitch
Keyword(s):  
Lexical Decision ◽  
Language Processing ◽  
Phonological Processing ◽  
Network Science ◽  
Response Times ◽  
Neighborhood Density ◽  
Decision Task ◽  
Contributing Factors ◽  
Network Analyses ◽  
Adults Who Stutter

Purpose Methods from network science have examined various aspects of language processing. Clinical populations may also benefit from these novel analyses. Phonological and lexical factors have been examined in adults who stutter (AWS) as potential contributing factors to stuttering, although differences reported are often subtle. We reexamined the performance of AWS and adults who do not stutter (AWNS) from a previously conducted lexical decision task in an attempt to determine if network science measures would provide additional insight into the phonological network of AWS beyond traditional psycholinguistic measures. Method Multiple regression was used to examine the influence of several traditional psycholinguistic measures as well as several new measures from network science on response times. Results AWS responded to low-frequency words more slowly than AWNS; responses for both groups were equivalent for high-frequency words. AWS responded to shorter words more slowly than AWNS, producing a reverse word-length effect. For the network measures, degree/neighborhood density and closeness centrality, but not whether a word was inside or outside the giant component, influenced response times similarly between groups. Conclusions Network analyses suggest that multiple levels of the phonological network might influence phonological processing, not just the micro-level traditionally considered by mainstream psycholinguistics.

scholarly journals Inhibitory and facilitatory effects of phonological and orthographic similarity on L2 word recognition across modalities in bilinguals

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Candice Frances ◽  
Eugenia Navarra-Barindelli ◽  
Clara D. Martin
Keyword(s):  
Lexical Decision ◽  
Language Processing ◽  
Theoretical Implication ◽  
Phonological Similarity ◽  
Target Language ◽  
Visual Modality ◽  
Decision Task ◽  
Auditory Modality ◽  
Orthographic Similarity ◽  
Special Category

AbstractLanguage perception studies on bilinguals often show that words that share form and meaning across languages (cognates) are easier to process than words that share only meaning. This facilitatory phenomenon is known as the cognate effect. Most previous studies have shown this effect visually, whereas the auditory modality as well as the interplay between type of similarity and modality remain largely unexplored. In this study, highly proficient late Spanish–English bilinguals carried out a lexical decision task in their second language, both visually and auditorily. Words had high or low phonological and orthographic similarity, fully crossed. We also included orthographically identical words (perfect cognates). Our results suggest that similarity in the same modality (i.e., orthographic similarity in the visual modality and phonological similarity in the auditory modality) leads to improved signal detection, whereas similarity across modalities hinders it. We provide support for the idea that perfect cognates are a special category within cognates. Results suggest a need for a conceptual and practical separation between types of similarity in cognate studies. The theoretical implication is that the representations of items are active in both modalities of the non-target language during language processing, which needs to be incorporated to our current processing models.

scholarly journals Lateralızatıon of Non-Word Processıng in Monolınguals

2020 ◽  
Vol 15 ◽  
pp. 185-190
Author(s):  
Filiz Mergen ◽  
Gulmira Kuruoglu
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Left Hemisphere ◽  
Word Processing ◽  
Lexical Processing ◽  
Response Times ◽  
Hemispheric Dominance ◽  
Decision Task ◽  
Visual Hemifield ◽  
Overwhelming Evidence

A great bulk of research in the psycholinguistic literature has been dedicated to hemispheric organization of words. An overwhelming evidence suggests that the left hemisphere is primarily responsible for lexical processing. However, non-words, which look similar to real words but lack meaningful associations, is underrepresented in the laterality literature. This study investigated the lateralization of Turkish non-words. Fifty-three Turkish monolinguals performed a lexical decision task in a visual hemifield paradigm. An analysis of their response times revealed left-hemispheric dominance for non-words, adding further support to the literature. The accuracy of their answers, however, were comparable regardless of the field of presentation. The results were discussed in light of the psycholinguistic word processing views.

scholarly journals Constructing the Mandarin Phonological Network: Novel Syllable Inventory Used to Identify Schematic Segmentation

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-21 ◽  
Author(s):  
Karl D. Neergaard ◽  
Chu-Ren Huang
Keyword(s):  
Language Processing ◽  
Phonological Processing ◽  
Network Science ◽  
Reaction Times ◽  
Mental Lexicon ◽  
Selection Procedure ◽  
Clustering Coefficient ◽  
The Novel ◽  
Lexical Tone ◽  
Syllable Segmentation

The purpose of this study was to construct, measure, and identify a schematic representation of phonological processing in the tonal language Mandarin Chinese through the combination of network science and psycholinguistic tasks. Two phonological association tasks were performed with native Mandarin speakers to identify an optimal phonological annotation system. The first task served to compare two existing syllable inventories and to construct a novel system where either performed poorly. The second task validated the novel syllable inventory. In both tasks, participants were found to manipulate lexical items at each possible syllable location, but preferring to maintain whole syllables while manipulating lexical tone in their search through the mental lexicon. The optimal syllable inventory was then used as the basis of a Mandarin phonological network. Phonological edit distance was used to construct sixteen versions of the same network, which we titled phonological segmentation neighborhoods (PSNs). The sixteen PSNs were representative of every proposal to date of syllable segmentation. Syllable segmentation and whether or not lexical tone was treated as a unit both affected the PSNs’ topologies. Finally, reaction times from the second task were analyzed through a model selection procedure with the goal of identifying which of the sixteen PSNs best accounted for the mental target during the task. The identification of the tonal complex-vowel segmented PSN (C_V_C_T) was indicative of the stimuli characteristics and the choices participants made while searching through the mental lexicon. The analysis revealed that participants were inhibited by greater clustering coefficient (interconnectedness of words according to phonological similarity) and facilitated by lexical frequency. This study illustrates how network science methods add to those of psycholinguistics to give insight into language processing that was not previously attainable.

Priming and the Effects of Sentence and Lexical Contexts on Naming Time: Evidence for Autonomous Lexical Processing

1981 ◽  
Vol 33 (4) ◽  
pp. 465-495 ◽  
Author(s):  
K. I. Forster
Keyword(s):  
Lexical Decision ◽  
Language Processing ◽  
Lexical Processing ◽  
Naming Task ◽  
Decision Time ◽  
Semantic Integration ◽  
Access Time ◽  
Decision Task ◽  
Naming Time ◽  
Inhibitory Effects

Models of language processing which stress the autonomy of processing at each level predict that the semantic properties of an incomplete sentence context should have no influence on lexical processing, either facilitatory or inhibitory. An experiment similar to those reported by Fischler and Bloom (1979) and Stanovich and West (1979, 1981) was conducted using naming time as an index of lexical access time. No facilitatory effects of context were observed for either highly predictable or semantically appropriate (but unpredictable) completions, whereas strong inhibitory effects were obtained for inappropriate completions. When lexical decision time was the dependent measure, the same results were obtained, except that predictable completions now produced strong facilitation. In a further experiment the inhibitory effects of context on lexical decision times for inappropriate targets were maintained, even though unfocussed contexts were used, in which no clear expectancy for a particular completion was involved. These results were interpreted in terms of a two-factor theory which attributes the facilitation observed with the lexical decision task to postaccess decision processes which are not involved in the naming task. The inhibitory effects were attributed to interference resulting from semantic integration. In contrast to the results for sentence contexts, lexical contexts of the doctor-nurse variety produced clear facilitation effects on naming time (but no inhibitory effects). It was also shown that relatively minor variations in the type of neutral context could completely alter the relative importance of facilitation and inhibition.

Vocabulary skill: single-case assessment of automaticity of word recognition in a timed lexical decision task

1995 ◽  
Vol 11 (2) ◽  
pp. 121-136 ◽  
Author(s):  
Norman Segalowitz ◽  
Vivien Watson ◽  
Sidney Segalowitz
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Lexical Decision Task ◽  
Response Times ◽  
Single Case ◽  
English Word ◽  
Decision Task ◽  
Vocabulary Assessment ◽  
Processing Mechanisms ◽  
Assessment Research

This study illustrates, in the context of vocabulary assessment research, a procedure for analysing a single subject's variability of response times (RTs) in a simple, timed lexical decision task. Following the interpretation developed in Segalowitz and Segalowitz (1993) for RT variability as reflection of the automatic/controlled nature of underlying processing mechanisms, it was possible to draw conclusions about the extent to which second language English word recognition in this subject was subserved by automatic as opposed to controlled processes. The study also examined the development of automaticity in word recognition skill for a small, selected vocabulary as a function of reading experience during a three-week testing period. The general implications of this methodology for assessing vocabulary skill in a single case are discussed.

scholarly journals The Omission of Accent Marks Does Not Hinder Word Recognition: Evidence From Spanish

2021 ◽  
Vol 12 ◽  
Author(s):  
Ana Marcet ◽  
María Fernández-López ◽  
Melanie Labusch ◽  
Manuel Perea
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Lexical Decision Task ◽  
Response Times ◽  
Word Identification ◽  
Decision Task ◽  
Similar Response ◽  
Opposite Pattern ◽  
Semantic Categorization ◽  
Blocked Design

Recent research has found that the omission of accent marks in Spanish does not produce slower word identification times in go/no-go lexical decision and semantic categorization tasks [e.g., cárcel (prison) = carcel], thus suggesting that vowels like á and a are represented by the same orthographic units during word recognition and reading. However, there is a discrepant finding with the yes/no lexical decision task, where the words with the omitted accent mark produced longer response times than the words with the accent mark. In Experiment 1, we examined this discrepant finding by running a yes/no lexical decision experiment comparing the effects for words and non-words. Results showed slower response times for the words with omitted accent mark than for those with the accent mark present (e.g., cárcel < carcel). Critically, we found the opposite pattern for non-words: response times were longer for the non-words with accent marks (e.g., cárdil > cardil), thus suggesting a bias toward a “word” response for accented items in the yes/no lexical decision task. To test this interpretation, Experiment 2 used the same stimuli with a blocked design (i.e., accent mark present vs. omitted in all items) and a go/no-go lexical decision task (i.e., respond only to “words”). Results showed similar response times to words regardless of whether the accent mark was omitted (e.g., cárcel = carcel). This pattern strongly suggests that the longer response times to words with an omitted accent mark in yes/no lexical decision experiments are a task-dependent effect rather than a genuine reading cost.

scholarly journals Is RoAsT tougher than StEAk?: The effect of case mixing on perception of multi-letter graphemes

Psihologija ◽  
2010 ◽  
Vol 43 (1) ◽  
pp. 103-116 ◽  
Author(s):  
Jelena Havelka ◽  
Clive Frankish
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Visual Word Recognition ◽  
Word Reading ◽  
Response Times ◽  
Visual Word ◽  
Decision Task ◽  
Response Latencies ◽  
Visual Segmentation ◽  
Word Shape

Case mixing is a technique that is used to investigate the perceptual processes involved in visual word recognition. Two experiments examined the effect of case mixing on lexical decision latencies. The aim of these experiments was to establish whether different case mixing patterns would interact with the process of appropriate visual segmentation and phonological assembly in word reading. In the first experiment, case mixing had a greater effect on response times to words when it led to visual disruption of the multi-letter graphemes (MLGs) as well as the overall word shape (e.g. pLeAd), compared to when it disrupted overall word shape only (e.g. plEAd). A second experiment replicated this finding with words in which MLGs represent either the vowel (e.g. bOaST vs. bOAst) or the consonant sound (e.g. sNaCK vs. sNAcK). These results confirm that case mixing can have different effect depending on the type of orthographic unit that is broken up by the manipulation. They demonstrate that graphemes are units that play an important role in visual word recognition, and that manipulation of their presentation by case mixing will have a significant effect on response latencies to words in a lexical decision task. As such these findings need to be taken into account by the models of visual word recognition.

scholarly journals Inhibitory and Facilitatory Effects of Phonological and Orthographic Similarity on Bilingual Word Recognition

2020 ◽  
Author(s):  
Candice Frances ◽  
Eugenia Navarra-Barindelli ◽  
Clara Martin
Keyword(s):  
Lexical Decision ◽  
Language Processing ◽  
Theoretical Implication ◽  
Phonological Similarity ◽  
Target Language ◽  
Visual Modality ◽  
Decision Task ◽  
Auditory Modality ◽  
Orthographic Similarity ◽  
Special Category

Abstract Language perception studies on bilinguals often show that words that share form and meaning across languages (cognates) are easier to process than words that share only meaning. This facilitatory phenomenon is known as the cognate effect. Most previous studies have shown this effect visually, whereas the auditory modality as well as the interplay between type of similarity and modality remain largely unexplored. In this study, highly proficient late Spanish-English bilinguals carried out a lexical decision task in their second language, both visually and auditorily. Words had high or low phonological and orthographic similarity, fully crossed. We also included orthographically identical words (perfect cognates). Our results suggest that similarity in the same modality (i.e., orthographic similarity in the visual modality and phonological similarity in the auditory modality) leads to improved signal detection, whereas similarity across modalities hinders it. We provide support for the idea that perfect cognates are a special category within cognates. Results suggest a need for a conceptual and practical separation between types of similarity in cognate studies. The theoretical implication is that the representations of items are active in both modalities of the non-target language during language processing, which needs to be incorporated to our current processing models.

scholarly journals Do dyslexics have auditory input processing difficulties?

2011 ◽  
Vol 32 (2) ◽  
pp. 245-261 ◽  
Author(s):  
MADS POULSEN
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Phonological Processing ◽  
Decision Task ◽  
Phonological Deficit ◽  
Word Level ◽  
Input Processing ◽  
Auditory Lexical Decision ◽  
Low Performance ◽  
Phoneme Perception

ABSTRACTWord production difficulties are well documented in dyslexia, whereas the results are mixed for receptive phonological processing. This asymmetry raises the possibility that the core phonological deficit of dyslexia is restricted to output processing stages. The present study investigated whether a group of dyslexics had word level receptive difficulties using an auditory lexical decision task with long words and nonsense words. The dyslexics were slower and less accurate than chronological age controls in an auditory lexical decision task, with disproportionate low performance on nonsense words. The finding suggests that input processing difficulties are associated with the phonological deficit, but that these difficulties may be stronger above the level of phoneme perception.

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