How does visual attention affect spatial resolution? In texture-segmentation tasks, exogenous (involuntary) attention automatically increases resolution at the attended location, which improves performance where resolution is too low (at the periphery) but impairs performance where resolution is already too high (at central locations). Conversely, endogenous (voluntary) attention improves performance at all eccentricities, which suggests a more flexible mechanism. Here, using selective adaptation to spatial frequency, we investigated the mechanism by which endogenous attention benefits performance in resolution tasks. Participants detected a texture target that could appear at several eccentricities. Adapting to high or low spatial frequencies selectively affected performance in a manner consistent with changes in resolution. Moreover, adapting to high, but not low, frequencies mitigated the attentional benefit at central locations where resolution was too high; this shows that attention can improve performance by decreasing resolution. Altogether, our results indicate that endogenous attention benefits performance by modulating the contribution of high-frequency information in order to flexibly adjust spatial resolution according to task demands.
Anton-ErxlebenK.CarrascoM. (2013). Attentional enhancement of spatial resolution: Linking behavioural and neurophysiological evidence. Nature Reviews Neuroscience, 14, 188–200.
3.
Anton-ErxlebenK.HenrichC.TreueS. (2007). Attention changes perceived size of moving visual patterns. Journal of Vision, 7(11), Article 5. doi:10.1167/7.11.5
4.
Anton-ErxlebenK.StephanV. M.TreueS. (2009). Attention reshapes center-surround receptive field structure in macaque cortical area MT. Cerebral Cortex, 19, 2466–2478.
5.
BarbotA. (2016). How attention enhances spatial resolution: Preferential gain enhancement of high spatial frequency neurons. Journal of Neuroscience, 36, 12080–12082. doi:10.1523/JNEUROSCI.2691-16.2016
6.
BarbotA.LandyM. S.CarrascoM. (2012). Differential effects of endogenous and exogenous attention on second-order texture contrast sensitivity. Journal of Vision, 12(8), Article 6. doi:10.1167/12/8/6
7.
CarrascoM. (2011). Visual attention: The past 25 years. Vision Research, 51, 1484–1525.
8.
CarrascoM.LoulaF.HoY. X. (2006). How attention enhances spatial resolution: Evidence from selective adaptation to spatial frequency. Perception & Psychophysics, 68, 1004–1012.
9.
CarrascoM.WilliamsP. E.YeshurunY. (2002). Covert attention increases spatial resolution with or without masks: Support for signal enhancement. Journal of Vision, 2(6), Article 4. doi:10.1167/2.6.4
10.
CarrascoM.YeshurunY. (1998). The contribution of covert attention to the set-size and eccentricity effects in visual search. Journal of Experimental Psychology: Human Perception and Performance, 24, 673–692.
11.
CarrascoM.YeshurunY. (2009). Covert attention effects on spatial resolution. Progress in Brain Research, 176, 65–86.
12.
CorbettaM.PatelG.ShulmanG. L. (2008). The reorienting system of the human brain: From environment to theory of mind. Neuron, 58, 306–324.
13.
de HaasB.SchwarzkopfD. S.AndersonE. J.ReesG. (2014). Perceptual load affects spatial tuning of neuronal populations in human early visual cortex. Current Biology, 24(2), R66–R67.
14.
DeValoisR. L.DeValoisK. K. (1988). Spatial vision. New York, NY: Oxford University Press.
15.
FischerJ.WhitneyD. (2009). Attention narrows position tuning of population responses in V1. Current Biology, 19, 1356–1361.
16.
GiordanoA. M.McElreeB.CarrascoM. (2009). On the automaticity and flexibility of covert attention: A speed-accuracy trade-off analysis. Journal of Vision, 9(3), Article 30. doi:10.1167/9.3.30
17.
GobellJ.CarrascoM. (2005). Attention alters the appearance of spatial frequency and gap size. Psychological Science, 16, 644–651.
18.
GollaH.IgnashchenkovaA.HaarmeierT.ThierP. (2004). Improvement of visual acuity by spatial cueing: A comparative study in human and non-human primates. Vision Research, 44, 1589–1600.
19.
GurnseyR.PearsonP.DayD. (1996). Texture segmentation along the horizontal meridian: Nonmonotonic changes in performance with eccentricity. Journal of Experimental Psychology: Human Perception and Performance, 22, 738–757.
20.
HallumL. E.LandyM. S.HeegerD. J. (2011). Human primary visual cortex (V1) is selective for second-order spatial frequency. Journal of Neurophysiology, 105, 2121–2131.
21.
HeinE.RolkeB.UlrichR. (2006). Visual attention and temporal discrimination: Differential effects of automatic and voluntary cueing. Visual Cognition, 13, 29–50.
22.
HessR. F.BakerD. H.MayK. A.WangJ. (2008). On the decline of 1st and 2nd order sensitivity with eccentricity. Journal of Vision, 8(1), Article 19. doi:10.1167/8.1.19
23.
JonesJ. P.PalmerL. A. (1987). An evaluation of the two-dimensional Gabor filter model of simple receptive fields in cat striate cortex. Journal of Neurophysiology, 58, 1233–1258.
24.
KehrerL. (1989). Central performance drop on perceptual segregation tasks. Spatial Vision, 4, 45–62.
25.
KehrerL. (1997). The central performance drop in texture segmentation: A simulation based on a spatial filter model. Biological Cybernetics, 77, 297–305.
26.
KehrerL.MeineckeC. (2003). A space-variant filter model of texture segregation: Parameter adjustment guided by psychophysical data. Biological Cybernetics, 88, 183–200.
27.
KleinB. P.HarveyB. M.DumoulinS. O. (2014). Attraction of position preference by spatial attention throughout human visual cortex. Neuron, 84, 227–237.
28.
MegnaN.RocchiF.BaldassiS. (2012). Spatio-temporal templates of transient attention revealed by classification images. Vision Research, 54, 39–48.
29.
MiconiT.VanRullenR. (2016). A feedback model of attention explains the diverse effects of attention on neural firing rates and receptive field structure. PLoS Computational Biology, 12(2), Article e1004770. doi:10.1371/journal.pcbi.1004770
30.
MineaultP. J.TringE.TrachtenbergJ. T.RingachD. L. (2016). Enhanced spatial resolution during locomotion and heightened attention in mouse primary visual cortex. Journal of Neuroscience, 36, 6382–6392.
MoreyR. D. (2008). Confidence intervals from normalized data: A correction to Cousineau (2005). Tutorial in Quantitative Methods for Psychology, 4(2), 61–64.
33.
MorikawaK. (2000). Central performance drop in texture segmentation: The role of spatial and temporal factors. Vision Research, 40, 3517–3526.
34.
PotechinC.GurnseyR. (2003). Backward masking is not required to elicit the central performance drop. Spatial Vision, 16, 393–406.
35.
RobertsM.DelicatoL. S.HerreroJ.GieselmannM. A.ThieleA. (2007). Attention alters spatial integration in macaque V1 in an eccentricity-dependent manner. Nature Neuroscience, 10, 1483–1491.
36.
SummersR. J.BakerD. H.MeeseT. S. (2015). Area summation of first- and second-order modulations of luminance. Journal of Vision, 15(1), Article 12. doi:10.1167/15.1.12
37.
TalgarC. P.CarrascoM. (2002). Vertical meridian asymmetry in spatial resolution: Visual and attentional factors. Psychonomic Bulletin & Review, 9, 714–722.
38.
VakrouC.WhitakerD.McGrawP. V. (2007). Extrafoveal viewing reveals the nature of second-order human vision. Journal of Vision, 7(14), Article 13. doi:10.1167/7.14.13
39.
VergheseP.KimY. J.WadeA. R. (2012). Attention selects informative neural populations in human V1. Journal of Neuroscience, 32, 16379–16390.
40.
WomelsdorfT.Anton-ErxlebenK.PieperF.TreueS. (2006). Dynamic shifts of visual receptive fields in cortical area MT by spatial attention. Nature Neuroscience, 9, 1156–1160.
41.
WomelsdorfT.Anton-ErxlebenK.TreueS. (2008). Receptive field shift and shrinkage in macaque middle temporal area through attentional gain modulation. Journal of Neuroscience, 28, 8934–8944.
42.
YeshurunY.CarrascoM. (1998). Attention improves or impairs visual performance by enhancing spatial resolution. Nature, 396, 72–75.
43.
YeshurunY.CarrascoM. (2000). The locus of attentional effects in texture segmentation. Nature Neuroscience, 3, 622–627.
YeshurunY.MontagnaB.CarrascoM. (2008). On the flexibility of sustained attention and its effects on a texture segmentation task. Vision Research, 48, 80–95.
46.
YeshurunY.RashalE. (2010). Precueing attention to the target location diminishes crowding and reduces the critical distance. Journal of Vision, 10(10), Article 16. doi:10.1167/10.10.16
47.
YeshurunY.SaboG. (2012). Differential effects of transient attention on inferred parvocellular and magnocellular processing. Vision Research, 74, 21–29.
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