Tag: light

  • What is color (in vision)?

    What is color (in vision)?

    Roses are red, Violets are blue, And you probably think That the sky is blue too. Color, however, exists only in the mind: Color is our experience that maps onto the physical luminance properties of visible light and visible-light reflectance properties of objects. Psychologists call this color perception, to recognize that color is more a property…

  • It’s drug time – Circadian rhythms and addiction

    From: all-about-addiction.com Like most living creatures, humans have internal biological clocks known as circadian rhythms. These internal cycles synchronize our bodies with the Earth’s 24-hour day/night cycle and prepare us for predictable daily events (1). Circadian rhythms regulate a number of bodily functions including temperature, hormone secretion, bowel movements, and sleep (2). Well, recent research…