the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment
the processes by which her brain organizes and interprets sensory input
What does Perception enable us to do?
recognize meaningful objects and events
analysis that begins with the sensory receptors and works up to the brain's integration of sensory information
information processing guided by higher-level mental processes
what does top-down processing do?
when we construct receptions drawing on our experience and expectations
the focusing of conscious awareness on a particular stimulus
failing to see visual objects when our attention is directed elsewhere ex. paying attention to 3 people playing basketball while a women walks across the screen that we don't notice
failing to notice changes in the environment
the process of converting one form of energy into another that your brain can use.
What is an example of transduction?
in sensation, the transforming of stimulus energies, such as sights, sounds, and smells, into neural impulses our brain can interpret
rudy of relationships between the physical characteristics of stimuli such as intensity and our psychological experience of them
the minimum stimulation needed to detect a particular stimulus 50 percent of the time
What are examples of minimum threshold?
detect a particular light from 30 miles away, sound, pressure, taste, or oder such as the drop of perfume in 3 rooms
Signal detection theory
theory predicting how and when we detect the presence of faint stimulus (signal) amine background stimulation (noise) ex. exhausted parents will notice the faintest whimper from a newborn's cradle while failing to notice louder, unimportant sounds
below one's absolute threshold for conscious awareness
activation, often unconsciously, of certain associations, thus predisposing one's perception, memory, or response
minimum difference between two stimuli required for detection 50 percent of time
principle that to be perceived as different, two stimuli must differ by a constant minimum percentage(Rather than a constant amount)
diminished sensitivity as a consequence of constant stimulation
a mental predisposition to perceive one thing or another ex. picture of the young or old women - young kids see it as young women - old people see it as a old women
Extrasensory Perception and abbreviation?
(ESP) the controversial claim that perception can occur apart from sensory input
What does extrasensory perception include?
telepathy, clairvoyance, precognition
What is telepathy?
mind to mind communication
What is clairvoyance?
perceiving remote events, such as a house on fire in another state
What is precognition?
perceiving future events, such as an unexpected death in the next month
study of paranormal phenomena, including ESP and psychokinesis
distance from the peak of one light or sound wave to the peak of the next, electromagnetic wavelengths vary from the short blips of cosmic rays to the long pulses of radio transmission
color we experience
What determines the Hue?
the wavelength of light