Abstract
Selective attention enhances visual information processing, as measured by behavioral performance and neural activity. However, little is known about its effects on subjective experience. Here, we investigated the effect of transient (exogenous) attention on the appearance of visual motion, using a psychophysical procedure that directly measures appearance and controls for response bias. Observers viewed pairs of moving dot patterns and reported the motion direction of the more coherent pattern. Directing attention (via a peripheral precue) to a stimulus location increased its perceived coherence level and improved performance on a direction discrimination task. In a control experiment, we ruled out response bias by lengthening the time interval between the cue and the stimuli, so that the effect of transient attention could no longer be exerted. Our results are consistent with those of neurophysiological studies showing that attention modulates motion processing and provide evidence of a subjective perceptual correlate of attention, with a concomitant effect on performance.
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Beauchamp, M. S., Cox, R. W., &DeYoe, E. A. (1997). Graded effects of spatial and featural attention on human area MT and associated motion processing areas.Journal of Neurophysiology,78, 516–520.
Carrasco, M. (2006). Covert attention increases contrast sensitivity: Psychophysical, neurophysiological, and neuroimaging studies. In S. Martinez-Conde, S. L. Macknik, L. M. Martinez, J. M. Alonso, & P. U. Tse (Eds.),Visual perception: Pt. 1. Fundamentals of vision: Low and mid-level processes in perception (pp. 33–70). Amsterdam: Elsevier.
Carrasco, M., Ling, S., &Read, S. (2004). Attention alters appearance.Nature Neuroscience,7, 308–313.
Carrasco, M., Penpeci-Talgar, C., &Eckstein, M. (2000). Spatial covert attention increases contrast sensitivity across the CSF: Support for signal enhancement.Vision Research,40, 1203–1215.
Chaudhuri, A. (1990). Modulation of the motion aftereffect by selective attention.Nature,344, 60–62.
Cheal, M., &Lyon, D. R. (1991). Central and peripheral precuing of forced-choice discrimination.Quarterly Journal of Experimental Psychology,43A, 859–880.
Cook, E. P., &Maunsell, J. H. R. (2002). Attentional modulation of behavioral performance and neuronal responses in middle temporal and ventral intraparietal areas of macaque monkey.Journal of Neuroscience,22, 1994–2004.
Corbetta, M., &Shulman, G. L. (2002). Control of goal-directed and stimulus-driven attention in the brain.Nature Reviews Neuroscience,3, 201–215.
Dobkins, K. R., &Bosworth, R. G. (2001). Effects of set-size and selective spatial attention on motion processing.Vision Research,41, 1501–1517.
Fine, I., Anderson, C. M., Boynton, G. M., &Dobkins, K. R. (2004). The invariance of directional tuning with contrast and coherence.Vision Research,44, 903–913.
Gibson, J. J. (1979).The ecological approach to visual perception. Boston: Houghton Mifflin.
Gobell, J., &Carrasco, M. (2005). Attention alters the appearance of spatial frequency and gap size.Psychological Science,16, 644–651.
Jonides, J. (1981). Voluntary vs. automatic control over the mind’s eye’s movement. In J. [B.] Long & A. [D.] Baddeley (Eds.),Attention and performance IX (pp. 187–204). Hillsdale, NJ: Erlbaum.
Lee, D. K., Itti, L., Koch, C., &Braun, J. (1999). Attention activates winner-take-all competition among visual filters.Nature Neuroscience,2, 375–381.
Liu, T., Pestilli, F., &Carrasco, M. (2005). Transient attention enhances perceptual performance and fMRI response in human visual cortex.Neuron,45, 469–477.
Loftus, G. R., &Masson, M. E. J. (1994). Using confidence intervals in within-subject designs.Psychonomic Bulletin & Review,1, 476–490.
Lu, Z.-L., &Dosher, B. A. (1998). External noise distinguishes attention mechanisms.Vision Research,38, 1183–1198.
Lu, Z.-L., Liu, C. Q., &Dosher, B. A. (2000). Attention mechanisms for multi-location first- and second-order motion perception.Vision Research,40, 173–186.
Luck, S. J. (2004). Understanding awareness: One step closer.Nature Neuroscience,7, 208–209.
Martínez-Trujillo, J., &Treue, S. (2002). Attentional modulation strength in cortical area MT depends on stimulus contrast.Neuron,35, 365–370.
Mayfrank, L., Kimmig, H., &Fischer, B. (1987). The role of attention in the preparation of visually guided saccadic eye movements in man. In J. K. O’Regan & A. Levy-Schoen (Eds.),Eye movements: From physiology to cognition (pp. 37–45). Amsterdam: North-Holland.
Müller, H. J., &Rabbitt, P. M. (1989). Reflexive and voluntary orienting of visual attention: Time course of activation and resistance to interruption.Journal of Experimental Psychology: Human Perception & Performance,15, 315–330.
Newsome, W. T., Britten, K. H., &Movshon, J. A. (1989). Neuronal correlates of a perceptual decision.Nature,341, 52–54.
Newsome, W. T., &Pare, E. B. (1988). A selective impairment of motion perception following lesions of the middle temporal visual area (MT).Journal of Neuroscience,8, 2201–2211.
Pack, C. C., Hunter, J. N., &Born, R. T. (2005). Contrast dependence of suppressive influences in cortical area MT of alert macaque.Journal of Neurophysiology,93, 1809–1815.
Pestilli, F., &Carrasco, M. (2005). Attention enhances contrast sensitivity at cued and impairs it at uncued locations.Vision Research,45, 1867–1875.
Prinzmetal, W., Nwachuku, I., Bodanski, L., Blumenfeld, L., &Shimizu, N. (1997). The phenomenology of attention: 2. Brightness and contrastConsciousness & Cognition,6, 372–412.
Reynolds, J. H., &Chelazzi, L. (2004). Attentional modulation of visual processing.Annual Review of Neuroscience,27, 611–647.
Reynolds, J. H., Pasternak, T., &Desimone, R. (2000). Attention increases sensitivity of V4 neurons.Neuron,26, 703–714.
Rezec, A., Krekelberg, B., &Dobkins, K. R. (2004). Attention enhances adaptability: Evidence from motion adaptation experiments.Vision Research,44, 3035–3044.
Sclar, G., Maunsell, J. H., &Lennie, P. (1990). Coding of image contrast in central visual pathways of the macaque monkey.Vision Research,30, 1–10.
Tadin, D., &Lappin, J. S. (2005). Optimal size for perceiving motion decreases with contrast.Vision Research,45, 2059–2064.
Tootell, R. B., Reppas, J. B., Kwong, K. K., Malach, R., Born, R. T., Brady, T. J., et al. (1995). Functional analysis of human MT and related visual cortical areas using magnetic resonance imaging.Journal of Neuroscience,15, 3215–3230.
Treue, S. (2004). Perceptual enhancement of contrast by attention.Trends in Cognitive Sciences,8, 435–437.
Treue, S., &Maunsell, J. H. (1996). Attentional modulation of visual motion processing in cortical areas MT and MST.Nature,382, 539–541.
Tsal, Y., &Shalev, L. (1996). Inattention magnifies perceived length: The attentional receptive field hypothesis.Journal of Experimental Psychology: Human Perception & Performance,22, 233–243.
Tsal, Y., Shalev, L., Zakay, D., &Lubow, R. E. (1994). Attention reduces perceived brightness contrast.Quarterly Journal of Experimental Psychology,47A, 865–893.
Wichmann, F. A., &Hill, N. J. (2001a). The psychometric function: I. Fitting, sampling, and goodness of fit.Perception & Psychophysics,63, 1293–1313.
Wichmann, F. A., &Hill, N. J. (2001b). The psychometric function: II. Bootstrap-based confidence intervals and sampling.Perception & Psychophysics,63, 1314–1329.
Yantis, S. (2000). Goal-directed and stimulus-driven determinants of attentional control. In S. Monsell & J. Driver (Eds.),Control of cognitive processes: Attention and performance XVIII (pp. 73–103). Cambridge, MA: MIT Press.
Yeshurun, Y., &Carrasco, M. (1998). Attention improves or impairs visual performance by enhancing spatial resolution.Nature,396, 72–75.
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Liu, T., Fuller, S. & Carrasco, M. Attention alters the appearance of motion coherence. Psychon Bull Rev 13, 1091–1096 (2006). https://doi.org/10.3758/BF03213931
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DOI: https://doi.org/10.3758/BF03213931