reflexét

Reflexion is a term that can refer to several related concepts, primarily in the realm of optics and behavior. In optics, it describes the phenomenon where a wave, such as light, bounces off a surface. This reflection follows the law of reflection, which states that the angle of incidence equals the angle of reflection. The nature of the reflected surface, whether smooth or rough, determines whether the reflection is specular (mirror-like) or diffuse (scattered).

In a behavioral context, particularly in biology and psychology, reflexion refers to an involuntary, rapid, and predictable response to a stimulus. These reflexes are typically mediated by the nervous system, often involving a simple reflex arc where a sensory neuron directly connects to a motor neuron, bypassing conscious processing in the brain. Examples include the knee-jerk reflex or the withdrawal reflex from a painful stimulus.

The term can also be used more broadly to denote a process of thoughtful consideration or introspection. In this sense, it implies a deeper analysis of one's thoughts, feelings, or experiences. However, this metaphorical usage is distinct from the scientific definitions in optics and neurobiology. While sharing a root, the context usually makes the intended meaning clear.