minimum amount of energy required for it to be reliably detected at least 50% of the time it is presented

occurs when we perceive individual bits of sensory information (e.g., sounds) and use them to construct a more complex perception

is the smallest difference between stimuli that can be reliably detected at least 50% of the time

paying attention to more than one stimulus or task at the same time

Doctrine of Specific Nerve Energies

the different senses are separated in the brain, was first proposed in 1826

Inattentional Blindness

a failure to notice clearly visible events or objects because attention is directed elsewhere

involves attending to, organizing, and interpreting stimuli that we sense

subliminal stimuli under strict laboratory conditions

the field of study that explores how physical energy such as light and sound and their intensity relate to psychological experience

involves focusing on one particular event or task, such as focused studying

detecting external events with sense organs and turning those stimuli into neural signals

reduction of activity in sensory receptors with repeated exposure to a stimulus

Signal Detection Theory

whether a stimulus is perceived depends on both the sensory experience and the judgment made by the subject

Subliminal Perception

meaning perception below the threshold of conscious awareness

when our perceptions are influenced by our expectations or by our prior knowledge

when specialized receptors transform the physical energy of the outside world into neural impulses

states that the just noticeable difference between two stimuli changes as a proportion of those stimuli

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Chapter 4.1

Sensation and Perception

Term	Definition
Absolute Threshold	minimum amount of energy required for it to be reliably detected at least 50% of the time it is presented
Bottom-up Processing	occurs when we perceive individual bits of sensory information (e.g., sounds) and use them to construct a more complex perception
Difference Threshold	is the smallest difference between stimuli that can be reliably detected at least 50% of the time
Divided Attention	paying attention to more than one stimulus or task at the same time
Doctrine of Specific Nerve Energies	the different senses are separated in the brain, was first proposed in 1826
Inattentional Blindness	a failure to notice clearly visible events or objects because attention is directed elsewhere
Perception	involves attending to, organizing, and interpreting stimuli that we sense
Priming	subliminal stimuli under strict laboratory conditions
Psychophysics	the field of study that explores how physical energy such as light and sound and their intensity relate to psychological experience
Selective Attention	involves focusing on one particular event or task, such as focused studying
Sensation	detecting external events with sense organs and turning those stimuli into neural signals
Sensory Addaption	reduction of activity in sensory receptors with repeated exposure to a stimulus
Signal Detection Theory	whether a stimulus is perceived depends on both the sensory experience and the judgment made by the subject
Subliminal Perception	meaning perception below the threshold of conscious awareness
Top-down Processing	when our perceptions are influenced by our expectations or by our prior knowledge
Transduction	when specialized receptors transform the physical energy of the outside world into neural impulses
Weber's Law	states that the just noticeable difference between two stimuli changes as a proportion of those stimuli

Created by: craigsherrington

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