Why do we say "À Noite Allos os Gatos São Pardos"?
A popular expression for all of our cats is always the result of popular and popular recipes, at the same time, with surprising scientific knowledge. This frequency is used to indicate that, no doubt, differences and details are imperceptible. No, when we analyze our biological biology, especially in visual neuroscience, we see that we have only a few words but very little confirmation that we have a first view.
A Visão dos Felinos Durante a Noite
Our cats may have a highly specialized ocular lens that allows it to be activated with great efficiency in the ambient light. Its capacity is mainly based on the presence of a reflexive camera at the retina's sensitive eye . This camera increases the light capture, reflects the light sources on the retina's fotorreceptors and proportions to a very sharp night vision.
No, this adaptation is at a glance: the distinction between cores has been compromised. Gatos enxergam um spectrum of cores limitedado, semelhante ao dos humanos com colorblinismo. At night, this limitation intensified. As a result, even those with different colors — such as pretos, brancos, rajados or aranjados — passam a ter a tonalidade parda or acinzentada under the conditions of the night. This optical phenomenon has to be explained, from the point of view of the physiology, to the origin of the popular saying.
How Light Influences the Perception of Cores
Your perception of the light depends directly on the presence of light. If there is adequate illumination, the cones — cells that are sensitive to the localization of the retina — do not operate efficiently. In humans, this results in difficulty in distinguishing tones. No case of cats, that may have small cones and but bastonetes (specialized cells in monochromatic view and low light), or indeed it is but pronounced.
Where human beings are subject to variations in the color of their skin during the course of the day, such as the glossy acetin of a preto or a long-lasting coat of a white cat, it is practically indistinguishable. However, please note that all of your cats still have to be removed from the concrete limits of the viewing mechanisms.
Curiosities about the behavior of our cats
Além da visão noturna impressivee, os gatos também são animais twilights — or seja, sua tividade atividade atinge picos durente o amanhecer eo tardecer. Estudiosos da etologia felina observe that, nesses períodos, os olhos dos felinos maximizam a entrada de luz thanks to totally dilated pupils. But I still have the ability to refine, the color details continue to be lost. Consequently, all of our feline furs must assume sharp or brown tones during testing hours.
Interestingly, the social and territorial behavior of cats is also low in light. These are the visual aspects of communication, such as postures of amenity or invitation for interaction, which are less obvious. Isso reforça ainda but a ideia de que escuro uniformiza não só aparência, but também certain aspects of behavior.
Scientific and Expressive Applications
At the most, "at night all of our cats are safe" we can see the same thing as a philosophical reflex. Fora do campo biológico, ela aponta para uma perspectiva em que, dante das incertezas ou da falta de clareza, todas as cisas parecem iguais. Curiously, this dialogue with neuroscience: the human brain tends to detect sensory gaps in generic information. Assim, no escuro, vemos contornos, forms and cores that nem semper correspondem to reality.
From the point of view of cognitive psychology , it is imprecise sensorial to explain the illusions of common emotions that involve our friends. Now you can easily see a few things you know or pass by completely unnoticed, which, inclusively, influence messages and popular supertições.
Conclusion: Ciência e Cultura se Encontram
Embora has the origin of the phrase tenha raízes culturais and históricas, a ciência oferece provas concretas que a tornam muito mais do que apenas um ditado. A physiology of the feline and human face, the behavior of low light levels and the limits of our own feelings are explained by why all of our cats are not affected by this . There is an encounter between empirical knowledge and some of its value in popular science, most of which is based on the foundation of biology and neuroscience.
In summary, it is as metáfora or as scientific observation, it is expressed as current and relevant. Ultimately, the biology of our cats is intimately linked to the way we perceive our world - and, during the night, our perceptions are definitely torn but homogeneous.