Sensation Flashcards
- are mind’s window to thw world thay exists around us.
- occurs when special receptors in the sense organs are activated
Sensations
This process of converting outside stimuli, such as light, into neutral activity
Transduction
Are specialized forms of neurons, the cells that make up the nervous system.
Sensory receptors
A condition that means “joined sensation”
Synesthesia
- did studies trying to determine the smallest difference between two weights that could be detected.
- His research led to the formulation known as “Weber’s law of just noticeable differences (JND or the difference threshold)
Ernst Weber
- expanded on Weber’s work by studying something he called “absolute threshold”
Gustav Fechner
is the lowest level of stimulation that a person can consciously detect 50 percent of the time the stimulation is present
Absolute Threshold
Stimuli below the level of conscious awareness
(the word limin means threshold)
Subliminal stimuli
Many people believe these stimuli act on the unconscious mind, influencing behavior in a process called
Subliminal perception
Demonstrated the power of subliminal perception in advertising.
James Vicary
- ERPs
- fMRI
- Event-related potentials
- functional magnetic resonance imaging
is used to compare our judgments, or the decisions we make, under uncertain conditions.
Signal detection theory
It is the way the brain deals with unchanging information from the environment.
Habituation
Is another process by which constant, unchanging inofrmation from the sensory receptors is effectively ignored.
Sensory Adaptation
- There’s a constant movement of the eyes, tiny little vibrations called
- or saccadic movements
Microsaccades