Please enable JavaScript.
Coggle requires JavaScript to display documents.
Principles of Sensation CM - Coggle Diagram
Principles of Sensation CM
absolute threshold
the minimum amount of stimulus energy that must be present for the stimulus to be detected 50% of the time.
difference threshold
how much difference in stimuli is required to detect a difference between them
difference threshold changes depending on the stimulus intensity.
signal detection
The ability to identify a stimulus when it is embedded in a distracting background
sensory adaptation
Although our perceptions are built from sensations, not all sensations result in perception. In fact, we often don’t perceive stimuli that remain relatively constant over prolonged periods of time.
Sensation
Sensory receptors are specialized neurons that respond to specific types of stimuli. When sensory information is detected by a sensory receptor, sensation has occurred.
Transduction
The conversion from sensory stimulus energy to action potential is known as transduction
Subliminal messages - It is possible for us to get messages that are presented below the threshold for conscious awareness
Perception
the way sensory information is organized, interpreted, and consciously experienced.
Top-down processing
how we interpret those sensations is influenced by our available knowledge, our experiences, and our thoughts.
Bottom-up processing
perceptions are built from sensory input.