Sensation and perception Flashcards
Sensation is based on what
Biology
Perception is based on what
Psychology
Defenition of perception
Process by which meaning or connotation is given a sensation
What is interesting about perception
Perception is not an accurate representation of our sensation
How does sensation work
External stimuli is converted into neural information
What type of neuron deos sensation interact with
It is different depending on the type of neuron and location
What is transduction
The process by whihc external stimuli is converted into neural information
When does transduction occour
When stimuli interact with specalized sensory receptors to create neural activity.
When is a sensory neuron started
When sodium changes to create depolarization
Absolute threshold
Amount of stimuli needed before a sensory system can register it. The intensity of threshold to be percieved
Difference threshold
Minimum difference in the intensity of a stimuli so that the difference is noticed (Webers law)
Ex: difference of 300 to 305 is much less noticable than 5 to 10
Adaptation
One of the main ways sensory system lies.
Ex: Adapting to a strong smell
Bottom up
Most basic processing to more complex processing
Top down
Some aspect of perceptipon that starts with the most complex
Where does transduction occour in the eye
The retina
