Outputs (14)

Exploring the Determinants of Color Perception Using #Thedress and Its Variants: The Role of Spatio-Chromatic Context, Chromatic Illumination, and Material–Light Interaction (2020)
Journal Article
Aston, S., Denisova, K., Hurlbert, A., Olkkonen, M., Pearce, B., Rudd, M., Werner, A., & Xiao, B. (2020). Exploring the Determinants of Color Perception Using #Thedress and Its Variants: The Role of Spatio-Chromatic Context, Chromatic Illumination, and Material–Light Interaction. Emotion, 49(11), 1235-1251. https://doi.org/10.1177/0301006620963808

The colors that people see depend not only on the surface properties of objects but also on how these properties interact with light as well as on how light reflected from objects interacts with an individual’s visual system. Because individual visua... Read More about Exploring the Determinants of Color Perception Using #Thedress and Its Variants: The Role of Spatio-Chromatic Context, Chromatic Illumination, and Material–Light Interaction.

Color ensembles: Sampling and averaging spatial hue distributions (2020)
Journal Article
Virtanen, L. S., Olkkonen, M., & Saarela, T. P. (2020). Color ensembles: Sampling and averaging spatial hue distributions. Journal of Vision, 20(5), 1-14. https://doi.org/10.1167/jov.20.5.1

Color serves both to segment a scene into objects and background and to identify objects. Although objects and surfaces usually contain multiple colors, humans can readily extract a representative color description, for instance, that tomatoes are re... Read More about Color ensembles: Sampling and averaging spatial hue distributions.

Red color facilitates the detection of facial anger — But how much? (2019)
Journal Article
Peromaa, T., & Olkkonen, M. (2019). Red color facilitates the detection of facial anger — But how much?. PLoS ONE, 14(4), Article e0215610. https://doi.org/10.1371/journal.pone.0215610

The color red seems to be consistently associated with the concept of anger. Beyond semantic associations, it has been suggested that the color red enhances our ability to perceive anger in faces. However, previous studies often lack proper color con... Read More about Red color facilitates the detection of facial anger — But how much?.

Adaptation decorrelates shape representations (2018)
Journal Article
Mattar, M. G., Olkkonen, M., Epstein, R. A., & Aguirre, G. K. (2018). Adaptation decorrelates shape representations. Nature Communications, 9(1), Article 3812. https://doi.org/10.1038/s41467-018-06278-y

Perception and neural responses are modulated by sensory history. Visual adaptation, an example of such an effect, has been hypothesized to improve stimulus discrimination by decorrelating responses across a set of neural units. While a central theor... Read More about Adaptation decorrelates shape representations.

A Bayesian Model of the Memory Colour Effect (2018)
Journal Article
Witzel, C., Olkkonen, M., & Gegenfurtner, K. R. (2018). A Bayesian Model of the Memory Colour Effect. i-Perception, 9(3), Article 204166951877171. https://doi.org/10.1177/2041669518771715

According to the memory colour effect, the colour of a colour-diagnostic object is not perceived independently of the object itself. Instead, it has been shown through an achromatic adjustment method that colour-diagnostic objects still appear slight... Read More about A Bayesian Model of the Memory Colour Effect.

Expectation modulates repetition priming under high stimulus variability (2017)
Journal Article
Olkkonen, M., Aguirre, G. K., & Epstein, R. A. (2017). Expectation modulates repetition priming under high stimulus variability. Journal of Vision, 17(6), Article 10. https://doi.org/10.1167/17.6.10

Neural responses to stimuli are often attenuated by repeated presentation. When observed in blood oxygen level-dependent signals, this attenuation is known as fMRI adaptation (fMRIa) or fMRI repetition suppression. According to a prominent account, f... Read More about Expectation modulates repetition priming under high stimulus variability.

Perception-memory interactions reveal a computational strategy for perceptual constancy (2016)
Journal Article
Olkkonen, M., Saarela, T., & Allred, S. (2016). Perception-memory interactions reveal a computational strategy for perceptual constancy. Journal of Vision, 16(3), Article 38. https://doi.org/10.1167/16.3.38

A key challenge for the visual system is to extract constant object properties from incoming sensory information. This information is ambiguous because the same sensory signal can arise from many combinations of object properties and viewing conditio... Read More about Perception-memory interactions reveal a computational strategy for perceptual constancy.

Memory colours affect colour appearance (2016)
Journal Article
Witzel, C., Olkkonen, M., & Gegenfurtner, K. (2016). Memory colours affect colour appearance. Behavioral and Brain Sciences, 39, Article e262. https://doi.org/10.1017/s0140525x15002587

Memory colour effects show that colour perception is affected by memory and prior knowledge and hence by cognition. None of Firestone & Scholl's (F&S's) potential pitfalls apply to our work on memory colours. We present a Bayesian model of colour app... Read More about Memory colours affect colour appearance.

Why some colors appear more memorable than others: A model combining categories and particulars in color working memory (2015)
Journal Article
Bae, G., Olkkonen, M., Allred, S., & Flombaum, J. (2015). Why some colors appear more memorable than others: A model combining categories and particulars in color working memory. Journal of Experimental Psychology: General, 144(4), 744-763. https://doi.org/10.1037/xge0000076

Categorization with basic color terms is an intuitive and universal aspect of color perception. Yet research on visual working memory capacity has largely assumed that only continuous estimates within color space are relevant to memory. As a result,... Read More about Why some colors appear more memorable than others: A model combining categories and particulars in color working memory.

The effect of memory and context changes on color matches to real objects (2015)
Journal Article
Allred, S., & Olkkonen, M. (2015). The effect of memory and context changes on color matches to real objects. Attention, Perception, and Psychophysics, 77(5), 1608-1624. https://doi.org/10.3758/s13414-014-0810-4

Real-world color identification tasks often require matching the color of objects between contexts and after a temporal delay, thus placing demands on both perceptual and memory processes. Although the mechanisms of matching colors between different... Read More about The effect of memory and context changes on color matches to real objects.

The central tendency bias in color perception: Effects of internal and external noise (2014)
Journal Article
Olkkonen, M., McCarthy, P., & Allred, S. (2014). The central tendency bias in color perception: Effects of internal and external noise. Journal of Vision, 14(11), Article 5. https://doi.org/10.1167/14.11.5

Perceptual estimates can be biased by previously seen stimuli in delayed estimation tasks. These biases are often toward the mean of the whole stimulus set. Recently, we demonstrated such a central tendency bias in delayed color estimation. In the Ba... Read More about The central tendency bias in color perception: Effects of internal and external noise.

Stimulus-specific variability in color working memory with delayed estimation (2014)
Journal Article
Bae, G., Olkkonen, M., Allred, S., Wilson, C., & Flombaum, J. (2014). Stimulus-specific variability in color working memory with delayed estimation. Journal of Vision, 14(4), Article 7. https://doi.org/10.1167/14.4.7

Working memory for color has been the central focus in an ongoing debate concerning the structure and limits of visual working memory. Within this area, the delayed estimation task has played a key role. An implicit assumption in color working memory... Read More about Stimulus-specific variability in color working memory with delayed estimation.

Short-term memory affects color perception in context (2014)
Journal Article
Olkkonen, M., & Allred, S. (2014). Short-term memory affects color perception in context. PLoS ONE, 9(1), Article e86488. https://doi.org/10.1371/journal.pone.0086488

Color-based object selection — for instance, looking for ripe tomatoes in the market — places demands on both perceptual and memory processes: it is necessary to form a stable perceptual estimate of surface color from a variable visual signal, as wel... Read More about Short-term memory affects color perception in context.

The effect of background and illumination on color identification of real, 3D objects (2013)
Journal Article
Allred, S., & Olkkonen, M. (2013). The effect of background and illumination on color identification of real, 3D objects. Frontiers in Psychology, 4, Article 821. https://doi.org/10.3389/fpsyg.2013.00821

For the surface reflectance of an object to be a useful cue to object identity, judgments of its color should remain stable across changes in the object's environment. In 2D scenes, there is general consensus that color judgments are much more stable... Read More about The effect of background and illumination on color identification of real, 3D objects.