scholarly journals Effects of age of acquisition and semantic transparency on reading characters in Chinese dyslexia

2010 ◽  
Vol 31 (4) ◽  
pp. 711-733
Author(s):  
SAM-PO LAW ◽  
OLIVIA YEUNG

ABSTRACTThis study examined the effects of the age of acquisition (AOA) and semantic transparency on the reading aloud ability of a Chinese dyslexic individual, TWT, who relied on the semantic pathway to name characters. Both AOA and semantic transparency significantly predicted naming accuracy and distinguished the occurrence of correct responses and semantic errors from other errors. A post hoc analysis of subsets of items orthogonally varied in the AOA and semantic transparency revealed an interaction between the two variables. These findings converge on reports of AOA and semantic effects on deep dyslexic individuals reading alphabetic scripts. The case of TWT, together with recent results of another Chinese dyslexic individual who reads via the nonsemantic route and exhibits the effects of AOA and phonological consistency, supports the arbitrary mapping hypothesis, which states that the AOA effect resides in the connection between two levels of representation.

2007 ◽  
Vol 98 (3) ◽  
pp. 499-516 ◽  
Author(s):  
Bao Guo Chen ◽  
Hui Xia Zhou ◽  
Susan Dunlap ◽  
Charles A. Perfetti

2020 ◽  
Author(s):  
Jon Catling ◽  
Mahmoud Medhat Elsherif

The Age of Acquisition (AoA) effect is such that words acquired early in life are processed more quickly than later-acquired words. One explanation for the AoA effects is the arbitrary mapping hypothesis (Ellis & Lambon-Ralph, 2000), stating that the AoA effects are more likely to occur in items that have an arbitrary, rather than a systematic, nature between input and output. Previous behavioural findings have shown that the AoA effects are larger in pictorial than word items. However, no behavioural studies have attempted to directly assess the AoA effects in relation to the connections between representations. In the first two experiments, 48 participants completed a word-picture verification task (Experiments 1A and 2A), together with a spoken (Experiment 1B) or written (Experiment 2B) picture naming task. In the third and fourth experiments, 48 participants complete a picture-word verification task (Experiments 3A and 4A), together with a spoken (Experiment 3B) or written (Experiment 4B) word naming task. For each pair of experiments the subtraction of the naming latencies from the verification tasks for each item per participant was calculated (Experiments 1-4C; e.g. Santiago, Mackay, Palma & Rho, 2000). Results showed that early-acquired items were responded to more quickly than late-acquired ones for all experiments, except for Experiment 3B (spoken word naming) where the AoA effect was shown for only low-frequency words. In addition, the subtraction results for pictorial stimuli demonstrated strong AoA effects. This strengthens the case for the AM hypothesis, also suggesting the AoA effect resides in the connections between representations.


2018 ◽  
Vol 24 ◽  
pp. 80-81
Author(s):  
Konstantinos Toulis ◽  
Krishna Gokhale ◽  
G. Neil Thomas ◽  
Wasim Hanif ◽  
Krishnarajah Nirantharakumar ◽  
...  

2018 ◽  
Vol 24 ◽  
pp. 51-52
Author(s):  
Vanita Aroda ◽  
Danny Sugimoto ◽  
David Trachtenbarg ◽  
Mark Warren ◽  
Gurudutt Nayak ◽  
...  

2004 ◽  
Vol 18 (1) ◽  
pp. 13-26 ◽  
Author(s):  
Antoinette R. Miller ◽  
J. Peter Rosenfeld

Abstract University students were screened using items from the Psychopathic Personality Inventory and divided into high (n = 13) and low (n = 11) Psychopathic Personality Trait (PPT) groups. The P300 component of the event-related potential (ERP) was recorded as each group completed a two-block autobiographical oddball task, responding honestly during the first (Phone) block, in which oddball items were participants' home phone numbers, and then feigning amnesia in response to approximately 50% of items in the second (Birthday) block in which oddball items were participants' birthdates. Bootstrapping of peak-to-peak amplitudes correctly identified 100% of low PPT and 92% of high PPT participants as having intact recognition. Both groups demonstrated malingering-related P300 amplitude reduction. For the first time, P300 amplitude and topography differences were observed between honest and deceptive responses to Birthday items. No main between-group P300 effects resulted. Post-hoc analysis revealed between-group differences in a frontally located post-P300 component. Honest responses were associated with late frontal amplitudes larger than deceptive responses at frontal sites in the low PPT group only.


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