Dear Celine,
The Helmholtz square illusion has been the subject of various studies exploring its relationship with environmental and social phenomena.
For example:
- Koutsoumpis et al. (2021) investigated the impact of horizontal stripes and dark clothes on perceived body shape, delving into the intersection of fashion and visual perception. This study sheds light on how the Helmholtz illusion may influence perceptions of body size and shape in the context of clothing and fashion.
- Ridgway (2014) explored women's perceptions of horizontal and vertical stripes in dress, providing insights into how the Helmholtz illusion influences individuals' perceptions of clothing patterns. This study contributes to understanding the social implications of the Helmholtz illusion in the context of fashion and personal appearance.
- Kremkow et al. (2014) discussed the difference in resolution between light and dark patches, which is related to the Helmholtz illusion.
- Pinna (2015) demonstrated broader implications of the Helmholtz illusion in geometrical and perceptual contexts.
- Ninio (2014) discussed the Helmholtz square illusion in the context of geometrical illusions, highlighting its unexpected effects on perceived compression.
- Mikellidou et al. (2016) linked the Helmholtz squares illusion to processing in the extrastriate visual area, emphasizing its relevance in understanding neural mechanisms underlying visual illusions.
Hope this helps!
Simone
REFERENCES
Koutsoumpis, A., Economou, E., & Burg, E. (2021). Helmholtz versus haute couture: how horizontal stripes and dark clothes make you look thinner. Perception, 50(9), 741-756. https://doi.org/10.1177/03010066211038158 Kremkow, J., Jin, J., Komban, S., Wang, Y., Lashgari, R., Li, X., … & Alonso, J. (2014). Neuronal nonlinearity explains greater visual spatial resolution for darks than lights. Proceedings of the National Academy of Sciences, 111(8), 3170-3175. https://doi.org/10.1073/pnas.1310442111 Mikellidou, K., Gouws, A., Clawson, H., Thompson, P., Morland, A., & Keefe, B. (2016). An orientation dependent size illusion is underpinned by processing in the extrastriate visual area, lo1. I-Perception, 7(5), 204166951666762. https://doi.org/10.1177/2041669516667628 Ninio, J. (2014). Geometrical illusions are not always where you think they are: a review of some classical and less classical illusions, and ways to describe them. Frontiers in Human Neuroscience, 8. https://doi.org/10.3389/fnhum.2014.00856 Pinna, B. (2015). Directional organization and shape formation: new illusions and helmholtz's square. Frontiers in Human Neuroscience, 9. https://doi.org/10.3389/fnhum.2015.00092
Ridgway, J. (2014). The helmholtz illusion: women’s perceptions of horizontal and vertical stripes in dress.. https://doi.org/10.31274/itaa_proceedings-180814-910
Other useful resources:
(2019). Wall patterns influence the perception of interior space. quarterly journal of experimental psychology, 73(1), 29-54. https://doi.org/10.1177/1747021819876637
(2019). Influences of orientation on the ponzo, contrast, and craik-o’brien-cornsweet illusions. attention perception & psychophysics, 82(4), 1896-1911. https://doi.org/10.3758/s13414-019-01953-8
(2023). On the origin of the helmholtz’s square illusion: an attentional account. attention perception & psychophysics, 85(6), 2018-2032. https://doi.org/10.3758/s13414-023-02717-1
Lectori Salutem,
In delving into the enigma of the Helmholtz square illusion puzzle and related unresolved phenomena, an overlooked truth emerges. When faced with the task of setting a classic digital alarm clock for the first time, four zeros incessantly flicker on and off. It becomes apparent that perceiving these zeros at time t(x) bears no correlation with perceiving the same zeros at time t(x+n). This disconnect in perception is not exclusive to numerical displays; it extends to fundamental cognitive processes.
The explanatory model of all goal-directed motor actions leads to a significant realization. Just as the perception of the flashing zeros remains transient, our perception of objects—such as a coffee cup on a table—operates independently across temporal instances. The act of perceiving the coffee cup at time t(x) holds no sway over our perception of the same coffee cup at time t(x+n).
This insight highlights a pivotal aspect of our perceptual faculties: their innate role as comparative tools. Beyond mere object recognition, our perceptual system is finely attuned to detecting changes, particularly in motion. Evolutionarily, the ability to discern movement holds greater significance than pinpointing static entities. Yet, this crucial distinction has largely eluded scientific acknowledgment.
In tackling the Helmholtz square illusion puzzle, it is imperative to consider this foundational principle. Our perception organ, beyond merely identifying objects, serves as a mechanism for comparing stimuli. Recognizing the primacy of this comparative function is essential in unraveling the mysteries of perception and elucidating its evolutionary significance.
N.J. Mol
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