PSY290H5 Lecture Notes - Lecture 8: Lamellar Corpuscle, Stimulus Modality, Visual Cortex
Document Summary
All animals have sensory organs containing receptor cells that sense some stimuli but not others. Sensory organs are very diverse but all senses use the same type of energy- action potentials. Traits that we see today are a product of evolution. Different animals can see different colours in the same flower depending on the level of light they can see. Can transduce energy to give our perceptual information about the sensory information. Energies of the electromagnetic system, but we have no system to detect these signals. We see about 300 nanometres of wavelength. Our perception doesn"t actually reflect all of reality. Animals see the colours more vibrantly than humans. The perception of a stimulus is more than a physical property of the object, but it is a perception created by the visual receptors of a human or animals" body. Most mammals have two types of cones. Pigeons have wavelengths that are both higher and lower than ours.
