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ERIC Number: EJ830294
Record Type: Journal
Publication Date: 2009-Apr
Pages: 12
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0278-2626
The Role of Low-Spatial Frequencies in Lexical Decision and Masked Priming
Boden, C.; Giaschi, D.
Brain and Cognition, v69 n3 p580-591 Apr 2009
Spatial frequency filtering was used to test the hypotheses that low-spatial frequency information in printed text can: (1) lead to a rapid lexical decision or (2) facilitate word recognition. Adult proficient readers made lexical decisions in unprimed and masked repetition priming experiments with unfiltered, low-pass, high-pass and notch filtered letter strings. In the unprimed experiments, a filtered target was presented for 105 or 400ms followed by a pattern mask. Sensitivity (d) was lowest for the low-pass filtered targets at both durations with a bias towards a "non-word" response. Sensitivity was higher in the high-pass and notch filter conditions. In the priming experiments, a forward mask was followed by a filtered prime then an unfiltered target. Primed words, but not non-words, were identified faster than unprimed words in both the low-pass and high-pass filtered conditions. These results do not support a unique role for low-spatial frequency information in either facilitating or making rapid lexical decisions. (Contains 1 table and 5 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A