Psychology Unit 3 Flashcards
What is Subliminal Stimuli
Stimuli not detectable 50% of the time. Below absolute Threshold.
What is inattentional blindness?
Failing to see visible objects when our attention is directed elsewhere.
Change Blindness
Failing to notice changes in visual environment
What is Bottom-Up processing?
Letting our senses alone determining our reaction to stimuli.
What is Top-Down processing?
Letting past experiences, bias, or other opinions determining reaction to stimuli.
What is transduction?
The process of converting a certain form of energy into neural impulses that our brain can interpret.
Absolute Threshold
The minimum stimulation needed to detect a particular stimulus.
Difference Threshold
The minimum difference between two stimuli required for detection.
What is our perceptual set.
A set of mental tendencies and assumptions that affects, top-down processing.
What can affect our perceptual set?
Context, Motives, and Emotion
What does Extrasensory Perception (ESP) claim?
Perception can occur apart from sensory input; including telepathy, precognition, etc.
Parapsychology is the study of what?
The study of paranormal phenomena, such as ESP and psychokinesis
Skeptics argue that in order to believe in ESP you must also believe that the brain is?
Capable of perceiving without sensory input
Relative Motion
As we move, objects that are actually stable may appear to move
Interposition
If one object partially blocks out the view of another, we perceive it as closer
What do nociceptors do?
Respond to potentially damaging stimuli by sending an impulse to the spinal cord, which passes the message to the brain, which interprets the signal as pain.
Phantom Pain
The brain can create pain without sensory input. This happens to patients who have had a limb amputation
What do taste buds contain?
A pore that catches good chemicals and antenna-like hairs that sense food chemicals. This info is sent to the temporal lobe
How does the sense of smell differ from other senses?
It does not pass neural information through the thalamus.
Color Constancy is?
Perceiving familiar objects as having consistent color, even if changing illumination.
The Cornea is what?
The eye’s clear, protective outer layer covers the pupil and Iris. Light enters through the cornea
Pupil is what?
Small adjustable opening in the center of the eye which light passes through.
Iris is what?
Ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil.
The lens is what and do what
The transparent structure behind the pupil changes shape to help focus images on the retina
