Video Experimental Relacionado
Updated: Sep 18, 2025

06:14
A Method for Investigating Change Blindness in Pigeons Columba Livia
Published on: September 7, 2018
6.5K
Ahora me ves, ahora no
1Evolution and Optics of Nanostructures Group, Department of Biology, Ghent University, Ghent, Belgium.
Resumen
Las células de calamar utilizan placas reflectantes nanoestructuradas para cambios rápidos de color. Este mecanismo biológico permite cambiar rápidamente entre colores vibrantes y casi transparentes.
Área de la Ciencia:
- La biofísica
- Ciencias de los materiales
- Biología marina
Sus antecedentes:
- Los calamares poseen notables habilidades dinámicas de camuflaje.
- Las estructuras celulares son la clave para los rápidos cambios de estado visual en los cefalópodos.
Objetivo del estudio:
- Para investigar la base estructural de los rápidos cambios de color en el calamar.
- Para entender las propiedades ópticas de las placas nanoestructuradas en los iridóforos de calamares.
Principales métodos:
- Técnicas de microscopía para analizar la estructura celular.
- Medidas ópticas para caracterizar las placas reflectantes.
- Modelado biofísico para simular la interacción de la luz.
Principales resultados:
- Identificó placas reflectantes nanoestructuradas dentro de los iridóforos de los calamares.
- Se demostró que estas placas permiten la reflexión de luz ajustable.
- Se ha observado un cambio rápido entre los estados reflectante (colorido) y transmisor (transparente).
Conclusiones:
- Las placas reflectantes nanoestructuradas son cruciales para las exhibiciones visuales dinámicas del calamar.
- Este mecanismo ofrece ideas sobre la manipulación biológica de la luz.
- Aplicaciones potenciales en materiales ópticos biomiméticos.
Más Videos Relacionados
Videos de Conceptos Relacionados
Deindividuation
27.4K
Deindividuation is a form of social influence on an individual’s behavior such that the individual engages in unusual or non-normal behavior while in a group setting. Why? Because in these group settings, the individual no longer sees themselves as an individual anymore, disinhibiting their behavior and personal restraint.
27.4K
Bystander Effect
9.7K
The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
9.7K
The Uncertainty Principle
25.0K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
25.0K
Hindsight Biases
3.9K
Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now?
3.9K
Nonconscious Mimicry
4.6K
Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
4.6K
Blinding
2.7K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
2.7K

