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Attentional blink is hierarchically modulated by phonological, morphological, semantic and lexical connections between two Chinese characters.

Cao HW, Jin KB, Li CY, Yan HM - PLoS ONE (2014)

Bottom Line: In this study, we employed varying connections between T1 and T2 and examined how these connections modulate the AB effect.We found that the strongest AB was observed when the two Chinese characters were completely unrelated, while the AB was reduced when T1 and T2 were phonologically, orthographically or semantically related and was almost completely eliminated when T1 and T2 were united in a lexical phrase.The order of activation between Chinese characters was identified as follows: (a) lexical phrases, (b) semantic connection, (c) morphological connection, (d) phonological connection and (e) unrelated words.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory for NeuroInformation of Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China.

ABSTRACT
The ability to identify the second of two targets (T2) is impaired if that target is presented less than ∼500 ms after the first (T1). This transient deficit is known as attentional blink (AB). Previous studies have suggested that the magnitude of the AB effect can be modulated by manipulating the allocation of attentional resources to T1 or T2. However, few experiments have used Chinese characters and words to explore this phenomenon. The existence of lexical, semantic, phonological and morphological connections between Chinese characters has been well established, and understanding these connections may improve our knowledge of reading Chinese. In this study, we employed varying connections between T1 and T2 and examined how these connections modulate the AB effect. We found that the strongest AB was observed when the two Chinese characters were completely unrelated, while the AB was reduced when T1 and T2 were phonologically, orthographically or semantically related and was almost completely eliminated when T1 and T2 were united in a lexical phrase. The order of activation between Chinese characters was identified as follows: (a) lexical phrases, (b) semantic connection, (c) morphological connection, (d) phonological connection and (e) unrelated words.

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Mean accuracy of T2 for trials in which T1 was detected correctly in five categories.The error bars indicate the standard error.
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pone-0104626-g004: Mean accuracy of T2 for trials in which T1 was detected correctly in five categories.The error bars indicate the standard error.

Mentions: Figure 4 indicates the accuracy with which the subjects were able to identify T2 at all SOAs for the trials in which T1 was correctly recognized in all five categories. The average performances in identifying T2 when T1 had been correctly detected under unrelated, phonological, morphological, semantic and lexical conditions was 61.25%, 79.08%, 88.02%, 91.87% and 95.52%, respectively. First, let us have a general look at Figure 4. A strong AB effect was observed when T1 and T2 were two unrelated Chinese characters. The subjects had more difficulty identifying T2 when that stimulus was presented in close temporal proximity to T1. However, gradual attenuation of the AB was observed when T1 and T2 were two phonologically, morphologically or semantically related characters. Namely, the performance of T2 was somewhat impaired under certain lag period under these three conditions, but its amplitude became gradually weaker compared with the unrelated category. Furthermore, the AB effect disappeared completely when T1 and T2 were united in a lexical, two-character Chinese phrase. The subjects’ accuracy in identifying T2 was almost identical for all temporal lags under lexical condition.


Attentional blink is hierarchically modulated by phonological, morphological, semantic and lexical connections between two Chinese characters.

Cao HW, Jin KB, Li CY, Yan HM - PLoS ONE (2014)

Mean accuracy of T2 for trials in which T1 was detected correctly in five categories.The error bars indicate the standard error.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4125286&req=5

pone-0104626-g004: Mean accuracy of T2 for trials in which T1 was detected correctly in five categories.The error bars indicate the standard error.
Mentions: Figure 4 indicates the accuracy with which the subjects were able to identify T2 at all SOAs for the trials in which T1 was correctly recognized in all five categories. The average performances in identifying T2 when T1 had been correctly detected under unrelated, phonological, morphological, semantic and lexical conditions was 61.25%, 79.08%, 88.02%, 91.87% and 95.52%, respectively. First, let us have a general look at Figure 4. A strong AB effect was observed when T1 and T2 were two unrelated Chinese characters. The subjects had more difficulty identifying T2 when that stimulus was presented in close temporal proximity to T1. However, gradual attenuation of the AB was observed when T1 and T2 were two phonologically, morphologically or semantically related characters. Namely, the performance of T2 was somewhat impaired under certain lag period under these three conditions, but its amplitude became gradually weaker compared with the unrelated category. Furthermore, the AB effect disappeared completely when T1 and T2 were united in a lexical, two-character Chinese phrase. The subjects’ accuracy in identifying T2 was almost identical for all temporal lags under lexical condition.

Bottom Line: In this study, we employed varying connections between T1 and T2 and examined how these connections modulate the AB effect.We found that the strongest AB was observed when the two Chinese characters were completely unrelated, while the AB was reduced when T1 and T2 were phonologically, orthographically or semantically related and was almost completely eliminated when T1 and T2 were united in a lexical phrase.The order of activation between Chinese characters was identified as follows: (a) lexical phrases, (b) semantic connection, (c) morphological connection, (d) phonological connection and (e) unrelated words.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory for NeuroInformation of Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China.

ABSTRACT
The ability to identify the second of two targets (T2) is impaired if that target is presented less than ∼500 ms after the first (T1). This transient deficit is known as attentional blink (AB). Previous studies have suggested that the magnitude of the AB effect can be modulated by manipulating the allocation of attentional resources to T1 or T2. However, few experiments have used Chinese characters and words to explore this phenomenon. The existence of lexical, semantic, phonological and morphological connections between Chinese characters has been well established, and understanding these connections may improve our knowledge of reading Chinese. In this study, we employed varying connections between T1 and T2 and examined how these connections modulate the AB effect. We found that the strongest AB was observed when the two Chinese characters were completely unrelated, while the AB was reduced when T1 and T2 were phonologically, orthographically or semantically related and was almost completely eliminated when T1 and T2 were united in a lexical phrase. The order of activation between Chinese characters was identified as follows: (a) lexical phrases, (b) semantic connection, (c) morphological connection, (d) phonological connection and (e) unrelated words.

Show MeSH