Week 3: Sensation and Perception Flashcards
What is sensation?
The process by which sensory receptors receive information from the environment.
What is perception?
The process of organizing and interpreting sensory information to make it meaningful.
What is the difference between sensation and perception?
Sensation is the detection of stimuli, while perception is the interpretation of those stimuli.
What is a threshold in sensation?
The minimum level of stimulus intensity needed to detect a stimulus.
What is the absolute threshold?
The smallest amount of stimulus that can be detected 50% of the time.
What is the difference threshold?
The minimum difference in stimulation required to detect a change between two stimuli.
What is sensory adaptation?
The process by which sensory receptors become less sensitive to constant stimuli.
What is transduction?
The process of converting sensory stimuli into neural signals.
What role do rods play in vision?
Rods detect light and are essential for vision in low-light conditions.
What role do cones play in vision?
Cones detect color and are essential for detailed vision in bright light.
What is the fovea?
A: The central area of the retina with the highest concentration of cones, providing sharp vision.
What is the optic nerve?
The nerve that transmits visual information from the retina to the brain.
What is depth perception?
The ability to perceive the world in three dimensions and judge distance.
What is binocular vision?
Vision using two eyes that allows for depth perception.
What is the function of the cochlea in hearing?
The cochlea converts sound waves into neural signals for the brain to process.
