Document Type : Original research study

Authors

1 shahidbeheshti university

2 ShahidBeheshti university

Abstract

Limits in performing concurrent multiple tasks often refer to as central attentional limitation. Visuospatial attention improves performance especially when stimuli are presented at attended locations. The aim of this study was answering to this question whether changing visuospatial attention by manipulating the cue-target compatibility would affect the attention mechanisms that limit central processing in multiple-task situations. In this experiment, a modified psychological refractory period paradigm was incorporated in which the second task was either a detection or discrimination, and a valid or invalid cue was presented before the first stimulus. The time interval between the first and second target were 200,400, and 900 ms. Finding revealed that visuospatial attention is related to the central attentional limitation, but controlling spatial attention without central resources is possible.

Keywords

1. Barbot, A., Landy, M. S., & Carrasco, M.(2011). Exogenous attention enhances 2nd-order contrast sensitivity. Vision research, 51(9), 1086-1098.
2. Brisson, B., & Jolicœur, P. (2007a). Electrophysiological evidence of central interference in the control of visuospatial attention. Psychonomic Bulletin & Review, 14(1), 126-132.
3. Brisson, B., & Jolicœur, P. (2007b). A psychological refractory period in access to visual short‐term memory and the deployment of visual–spatial attention: Multitasking processing deficits revealed by event‐related potentials. Psychophysiology, 44(2), 323-333.
4. Brisson, B., Leblanc, É., & Jolicœur, P. (2009). Contingent capture of visual-spatial attention depends on capacity-limited central mechanisms: Evidence from human electrophysiology and the psychological refractory period. Biological Psychology, 80(2), 218-225.
5. Carrasco, M. (2011). Visual attention: The past 25 years. Vision research, 51(13), 1484-1525.
6. Carrasco, M. (2014). Spatial covert attention: Perceptual modulation. The Oxford handbook of attention, 183-230.
7. Chun, M. M., & Wolfe, J. M. (2001). Chapter nine visual attention.
8. Eriksen, C. W., Webb, J. M., & Fournier, L. R. (1990). How much processing do nonattended stimuli receive? Apparently very little, but. Perception & Psychophysics, 47(5), 477-488.
9. Herrmann, K., Montaser-Kouhsari, L., Carrasco, M., & Heeger, D. J. (2010). When size matters: attention affects performance by contrast or response gain. Nature neuroscience, 13(12), 1554-1559.
10. Jiang, Y., & Chun, M. M. (2001). The influence of temporal selection on spatial selection and distractor interference: An attentional blink study. Journal of Experimental Psychology: Human Perception and Performance, 27(3), 664.
11. Johnston, J. C., McCann, R. S., & Remington, R. W. (1995). Chronometric evidence for two types of attention. Psychological Science, 365-369.
12. Kahneman, D. (1973). Attention and effort: Citeseer.
13. Lien, M.-C., Croswaite, K., & Ruthruff, E. (2011). Controlling spatial attention without central attentional resources: Evidence from event-related potentials. Visual Cognition, 19(1), 37-78.
14. Lien, M.-C., Ruthruff, E., Goodin, Z., & Remington, R. W. (2008). Contingent attentional capture by top-down control settings: converging evidence from event-related potentials. Journal of Experimental Psychology: Human Perception and Performance, 34(3), 509.
15. Martell, S. G., & Vickers, J. N. (2004). Gaze characteristics of elite and near-elite athletes in ice hockey defensive tactics. Human movement science, 22(6), 689-712.
16. Montagna, B., Pestilli, F., & Carrasco, M. (2009). Attention trades off spatial acuity. Vision research, 49(7), 735-745.
17. Pashler, H. (1991). Shifting visual attention and selecting motor responses: distinct attentional mechanisms. Journal of Experimental Psychology: Human Perception and Performance, 17(4), 1023.
18. Pashler, H. (1994). Dual-task interference in simple tasks: data and theory. Psychological bulletin, 116(2), 220.
19. Pashler, H., & Johnston, J. C. (1989). Chronometric evidence for central postponement in temporally overlapping tasks. The Quarterly Journal of Experimental Psychology, 41(1), 19-45.
20. Pashler, H. E., & Sutherland, S. (1998). The psychology of attention (Vol. 15): MIT press Cambridge, MA.
21. Posner, M. I. (1980). Orienting of attention. Quarterly journal of experimental psychology, 32(1), 3-25.
22. Posner, M. I., & Cohen, Y. (1984). Components of visual orienting. Attention and performance X: Control of language processes, 32, 531-556.
23. Ruthruff, E., Johnston, J. C., Van Selst, M., Whitsell, S., & Remington, R. (2003). Vanishing dual-task interference after practice: Has the bottleneck been eliminated or is it merely latent? Journal of Experimental Psychology: Human Perception and Performance, 29(2), 280.
24. Schmidt, R. A., & Lee, T. (1988). Motor control and learning: Human kinetics.
25. Sternberg, R. J., & Sternberg, K. (2015). Cognitive psychology: Nelson Education.
26. Tombu, M., & Jolicœur, P. (2002). All-or-none bottleneck versus capacity sharing accounts of the psychological refractory period phenomenon. Psychological research, 66(4), 274-286.
27. Tombu, M., & Jolicœur, P. (2003). A central capacity sharing model of dual-task performance. Journal of Experimental Psychology: Human Perception and Performance, 29(1), 3.