TY  - JOUR
A1  - Dambacher, Michael
A1  - Slattery, Timothy J.
A1  - Yang, Jinmian
A1  - Kliegl, Reinhold
A1  - Rayner, Keith
T1  - Evidence for direct control of eye movements during reading
JF  - Journal of experimental psychology : Human perception and performance
N2  - It is well established that fixation durations during reading vary with processing difficulty, but there are different views on how oculomotor control, visual perception, shifts of attention, and lexical (and higher cognitive) processing are coordinated. Evidence for a one-to-one translation of input delay into saccadic latency would provide a much needed constraint for current theoretical proposals. Here, we tested predictions of such a direct-control perspective using the stimulus-onset delay (SOD) paradigm. Words in sentences were initially masked and, on fixation, were individually unmasked with a delay (0-, 33-, 66-, 99-ms SODs). In Experiment 1, SODs were constant for all words in a sentence; in Experiment 2, SODs were manipulated on target words, while nontargets were unmasked without delay. In accordance with predictions of direct control, nonzero SODs entailed equivalent increases in fixation durations in both experiments. Yet, a population of short fixations pointed to rapid saccades as a consequence of low-level information at nonoptimal viewing positions rather than of lexical processing. Implications of these results for theoretical accounts of oculomotor control are discussed.
KW  - stimulus-onset delay
KW  - oculomotor control
KW  - fixation durations
KW  - sentence reading
Y1  - 2013
U6  - https://doi.org/10.1037/a0031647
SN  - 0096-1523
VL  - 39
IS  - 5
SP  - 1468
EP  - 1484
PB  - American Psychological Association
CY  - Washington
ER  - 
TY  - GEN
A1  - Dambacher, Michael
A1  - Kliegl, Reinhold
T1  - Synchronizing timelines: Relations between fixation durations and N400 amplitudes during sentence reading
N2  - We examined relations between eye movements (single-fixation durations) and RSVP-based event-related potentials (ERPs; N400’s) recorded during reading the same sentences in two independent experiments. Longer fixation durations correlated with larger N400 amplitudes. Word frequency and predictability of the fixated word as well as the predictability of the upcoming word accounted for this covariance in a path-analytic model. Moreover, larger N400 amplitudes entailed longer fixation durations on the next word, a relation accounted for by word frequency. This pattern offers a neurophysiological correlate for the lag-word frequency effect on fixation durations: Word processing is reliably expressed not only in fixation durations on currently fixated words, but also in those on subsequently fixated words.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 262 
KW  - sentence reading
KW  - eye-movements
KW  - fixation durations
KW  - rapid serial visual presentation (RSVP)
KW  - event-related potentials (ERP)
KW  - N400
KW  - path analysis
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-57212
ER  -