Research that uses simple response time tasks and neuroimaging has emphasized that attentional preparation based on temporal expectancy modulates processing at motor levels. A novel approach was taken to study whether the temporal orienting of attention can also modulate perceptual processing. A temporal-cuing paradigm was used together with a rapid serial visual presentation procedure, in order to maximize the processing demands of perceptual analysis. Signal detection theory was applied in order to examine whether temporal orienting affects processes related to perceptual sensitivity or to response criterion (indexed byďand beta measures, respectively). If temporal orienting implies perceptual preparation, we would expect to observe an increase in perceptual sensitivity (ď) when a target appeared at expected, rather than unexpected, time intervals. Indeed, our behavioral results opened the possibility that focusing attention on time intervals not only enhances motor processing, as has been shown by previous research, but also might improve perceptual processing.
Stimulus Onset Asynchrony Rapid Serial Visual Presentation Validity Effect Motor Preparation Perceptual Sensitivity
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Correa, Á., Lupiáñez, J., Milliken, B., &Tudela, P. (2004). Endogenous temporal orienting of attention in detection and discrimination tasks.Perception & Psychophysics,66, 264–278.CrossRefGoogle Scholar
Coull, J. T., Frith, C. D., Büchel, C., &Nobre, A. C. (2000). Orienting attention in time: Behavioural and neuroanatomical distinction between exogenous and endogenous shifts.Neuropsychologia,38, 808–819.PubMedCrossRefGoogle Scholar
Coull, J. T., &Nobre, A. C. (1998). Where and when to pay attention: The neural systems for directing attention to spatial locations and to time intervals as revealed by both PET and fMRI.Journal of Neuroscience,18, 7426–7435.PubMedGoogle Scholar
Enns, J. T., &Di Lollo, V. (1997). Object substitution: A new form of masking in unattended visual locations.Psychological Science,8, 135–139.CrossRefGoogle Scholar
Ghose, G. M., &Maunsell, J. H. R. (2002). Attentional modulation in visual cortex depends on task timing.Nature,419, 616–620.PubMedCrossRefGoogle Scholar
Green, D. M., &Swets, J. A. (1966).Signal detection theory and psychophysics. New York: Wiley.Google Scholar
Griffin, I. C., Miniussi, C., &Nobre, A. C. (2002). Multiple mechanisms of selective attention: Differential modulation of stimulus processing by attention to space of time.Neuropsychologia,40, 2325–2340.PubMedCrossRefGoogle Scholar
Hawkins, H. L., Hillyard, S. A., Luck, S. J., Mouloua, M., Downing, C. J., &Woodward, D. P. (1990). Visual attention modulates signal detectability.Journal of Experimental Psychology: Human Perception & Performance,16, 802–811.CrossRefGoogle Scholar
Luck, S. J., Hillyard, S. A., Mouloua, M., Woldorff, M. G., Clark, V. P., &Hawkins, H. L. (1994). Effects of spatial cuing on luminance detectability: Psychophysical and electrophysiological evidence for early selection.Journal of Experimental Psychology: Human Perception & Performance,20, 887–904.CrossRefGoogle Scholar
Milliken, B., Lupiáñez, J., Roberts, M., &Stevanovski, B. (2003). Orienting in space and time: Joint contributions to exogenous spatial cuing effects.Psychonomic Bulletin & Review,10, 877–883.CrossRefGoogle Scholar
Miniussi, C., Wilding, E. L., Coull, J. T., &Nobre, A. C. (1999). Orienting attention in time: Modulation of brain potentials.Brain,122, 1507–1518.PubMedCrossRefGoogle Scholar