Journal
ATTENTION PERCEPTION & PSYCHOPHYSICS
Volume 74, Issue 4, Pages 754-765Publisher
SPRINGER
DOI: 10.3758/s13414-011-0263-y
Keywords
Word recognition; Cognitive control; Automaticity; Attention
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Funding
- NIH/NIDCD [R01-DC04535-11]
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In reading research, a longstanding question is whether any stages of lexical processing require central attention, and whether such potential demands are frequency-sensitive. In the present study, we examined the allocation of cognitive effort in lexical processing by examining pupil dilations and naming latencies in a modified delayed naming procedure. In this dual-task/change procedure, participants read words and waited for various delays before being signaled to issue a response. On most trials (80%), participants issued a standard naming respons.e. On the remaining trials, they were cued to abandon the original speech plan, saying blah instead, thereby equating production across different words Using feature-matched low- and high-frequency words, we observed the differences in pupil dilations as a function of word frequency. Indeed, frequency-sensitive cognitive demands were seen in word processing, even after naming responses were issued. The results suggest that word perception and/or speech planning requires the frequency-sensitive allocation of cognitive resources.
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