Abstract
A varying contrastive context filter (VCCF)-based model of brightness perception has been proposed. It is motivated first by a recently proposed difference of difference-of-Gaussian (DDOG) filter. Alongside, it is also inspired from the fact that the nature evolves various discrete systems and mechanisms to carry out many of its complex tasks. A weight factor, used for the linear combination of two filters representing the magnocellular and parvocellular channels in the central visual pathway, has been defined and termed as the factor of contrastive context (FOCC) in the present model. This is a binary variable that lends a property of discretization to the DDOG filter. By analyzing important brightness contrast as well as brightness assimilation illusions, we arrive at the minimal set of values (only two) for FOCC, using which one is able to successfully predict the direction of brightness shift in both situations of brightness contrast, claimed and categorized here as low contrastive context, and those of brightness assimilation, claimed and categorized here as high contrastive context perception, depending upon whether the initial M-channel-filtered stimulus is above or below a threshold of the contrastive context. As distinct from Michelson/Weber/RMS contrast, high or low, the contrastive context claimed is dependent on the edge information in the stimulus determined by the Laplacian operator, also used in the DDOG model. We compared the proposed model against the already well-established oriented difference-of-Gaussian (ODOG) model of brightness perception. Extensive simulations suggest that though for most illusions both ODOG and VCCF produce correct output, for certain intricate cases in which the ODOG filter fails to correctly predict the illusory effect, our proposed VCCF model continues to remain effective.
Data and Code Availability
The data and code are available at https://github.com/ashbakcode/Contrastive-Context-Filter-Code.
References
Bakshi A, Ghosh K (2018) A parsimonious model of brightness induction. Biol Cyb 112:237–251
Bakshi A, Roy S, Mallick A, Ghosh K (2016) Limitations of the oriented difference of gaussian filter in special cases of brightness perception illusions. Perception 45:328–336
Blakeslee B, McCourt ME (1999) A multiscale spatial filtering account of the White effect, simultaneous brightness contrast and grating induction. Vis Res 39:4361–4377
Blakeslee B, McCourt ME (2004) A unified theory of brightness contrast and assimilation incorporating oriented multiscale spatial filtering and contrast normalization. Vis Res 44:2483–2503
Blakeslee B, Cope D, McCourt ME (2016) The Oriented Difference of Gaussians (ODOG) model of brightness perception: Overview and executable Mathematica notebooks. Behav Res Meth 48:306–312
Breitmeyer BG (2014) Contributions of magno-and parvocellular channels to conscious and non-conscious vision. Philos Transac Royal Soc b: Biol Sci 369(1641):20130213
Buracas GT, Boynton GM (2007) The effect of spatial attention on contrast response functions in human visual cortex. J Neurosci 27:93–97
Chen Y, Martinez-Conde S, Macknik SL, Bereshpolova Y, Swadlow HA, Alonso J-M (2008) Task difficulty modulates the activity of specific neuronal populations in primary visual cortex. Nat Neurosci 11:974–982
Dobkins KR, Teller DY (1996) Infant contrast detectors are selective for direction of motion. Vis Res 36:281–294
Heinemann EG (1955) Simultaneous brightness induction as a function of inducing-and test-field luminances. J Exp Psych 50:89–96
Howe PDL (2001) A comment on the Anderson (1997), the Todorovic (1997), and the Ross and Pessoa (2000) explanations of White’s effect. Perception 30:1023–1026
Levinson E, Sekuler R (1975) The independence of channels in human vision selective for direction of movement. J Physiol 250:347–366
Marr D, Hildreth E (1980) Theory of edge detection. Proc Roy Soc Lond B 207:187–217
Mazumdar D, Mitra S, Ghosh K, Bhaumik K (2016) A DOG filter model of the occurrence of Mach bands on spatial contrast discontinuities. Biol Cybern 110(2):229–236
McCourt ME (1982) A spatial frequency dependent grating-induction effect. Vis Res 22:119–134
Merigan WH, Maunsell JH (1993) How parallel are the primate visual pathways? Annu Rev Neurosci 16(1):369–402
Pelli DG, Bex P (2013) Measuring contrast sensitivity. Vis Res 90:10–14. https://doi.org/10.1016/j.visres.2013.04.015
Pooresmaeili A, Poort J, Thiele A, Roelfsema PR (2010) Separable codes for attention and luminance contrast in the primary visual cortex. J Neurosci 30(38):12701–12711
Reynolds JH, Pasternak T, Desimone R (2000) Attention increases sensitivity of V4 neurons. Neuron 26:703–714
Robinson AE, Hammon PS, de Sa VR (2007) Explaining brightness illusions using spatial filtering and local response normalization. Vis Res 47:1631–1644
Rodieck RW, Stone J (1965) Analysis of receptive fields of cat retinal ganglion cells. J Neurophysiol 28:833–849
Sawatari A, Callaway EM (1996) Convergence of magno-and parvocellular pathways in layer 4B of macaque primary visual cortex. Nature 380(6573):442–446
Schneider KA (2011) Attention alters decision criteria but not appearance: A reanalysis of Anton-Erxleben, Abrams, and Carrasco (2010). J vis 11(13):7–7
Sclar G, Maunsell JHR, Lennie P (1990) Coding of image contrast in central visual pathways of the macaque monkey. Vis Res 30:1–10
Shapiro A, Lu Z-L (2011) Relative brightness in natural images can be accounted for by removing blurry content. Psychol Sci 22:1452–1459
Short JRH, Mock VL, Briggs F (2017) Attentional Modulation of neuronal activity depends on neuronal feature selectivity. Curr Biol 27:1878–1887
Spehar B, Gilchrist A, Arend L (1997) Qualitative boundaries critical in White’s effect and square-wave brightness induction: a reply to Kingdom et al. (1997). Vis Res 37:1044–1047
Thiele A, Distler C, Hoffmann KP (1999) Decision-related activity in the macaque dorsal visual pathway. Eur J Neurosci 11:2044–2058
Thiele A, Dobkins KR, Albright TD (2000) Neural correlates of contrast detection at threshold. Neuron 26:715–724
Thiele A, Pooresmaeili A, Delicato LS, Herrero JL, Roelfsema PR (2009) Additive effects of attention and stimulus contrast in primary visual cortex. Cereb Cortex 19:2970–2981
Thiele A, Brandt C, Dasilva M, Gotthardt S, Chicharro D, Panzeri S, Distler C (2016) Attention induced gain stabilization in broad and narrow-spiking cells in the frontal eye-field of macaque monkeys. J Neurosci 36:7601–7612
Watson AB, Thompson PG, Murphy BJ, Nachmias J (1980) Summation and discrimination of gratings moving in opposite directions. Vis Res 20:341–347
White M (1981) The effect of the nature of the surround on the perceived lightness of grey bars within square-wave test gratings. Perception 10:215–230
Funding
The authors acknowledge the financial support received from TAC-DCSW-CCSD, ISI (MIU-15-18 18-21), and the Cognitive Science Research Initiative (CSRI/307/2016), Govt. of India. The authors are very grateful to Alan Robinson for providing the MATLAB code of the ODOG filter that has been used in Robinson et al. (2007), and for permitting the use of the same in the present work for the sake of comparison with the proposed VCCF model.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
We have no potential conflict of interest.
Ethical approval
The authors have followed the COPE guidelines for ethical responsibilities.
Human and animal rights
No human or animal subjects have participated in the present study.
Additional information
Communicated by Benjamin Lindner.
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Bakshi, A., Roy, S., Mallick, A. et al. A discrete magno–parvo additive model in early vision for explaining brightness perception in varying contrastive contexts. Biol Cybern 116, 5–21 (2022). https://doi.org/10.1007/s00422-021-00896-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00422-021-00896-4