Chapter 3 Sensation & Perception Flashcards
What is Sensation?
Process of detecting a physical stimulus
What is Perception?
Process of integrating, organizing, & interpreting sensation
Sensation uses what part of the nervous system?
Peripheral Nervous System
Perception uses what part of the nervous system?
Central Nervous System
What are sensory receptors?
Specialized cells unique to each sense organ
What does Transduction do?
The process of converting energy
What is the Absolute Threshold?
How much of a threshold in order to have a response
What is the Difference Threshold?
A noticeable difference
Weber’s Law states…
In order to detect a significant signal there needs to be a a change
What does the Pupil do?
lets in different amount of light
What does the Lens do?
Actively focuses or bends light as it enters the eye
What does Accommodation do?
changes shape to focus incoming light
Whats the difference between Constrict and Dilate?
Constrict makes the pupil small, Dilate makes the pupil big
What does the Optical Nerve do?
Responsible for sight
Rods are responsible for…
Shapes