| Term Definition | Signal Detection Theory Emphasizes that personal expectations and motivations influence the level of absolute thresholds. This theory explains why people respond differently to the same stimuli. |
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Which theory emphasizes that personal expectations and motivations influence the level of absolute thresholds quizlet?
Which theory emphasizes that personal expectations and motivations influence the level of absolute thresholds?
Weber’s law
.
Which of the following principles states that two stimuli must differ by a constant minimum percentage to be perceived as different?
| A B | the principle that, to be perceived as different, two stimuli must differ by a constant minimum percentage (rather than a constant amount) Weber’s Law | diminished sensitivity as a consequence of constant stimulation sensory adaptation |
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What is the minimum difference in stimuli that a person can detect half of the time called?
The just noticeable difference (JND), also known as the difference threshold, is the minimum level of stimulation that a person can detect 50 percent of the time.
What is the process of receiving and representing stimulus energies through the nervous system?
A) blind spot. … A) blind spot. The process of receiving and representing stimulus energies by the nervous system is called. A)
priming
.
What is the greatest difficulty facing contemporary parapsychology?
The greatest difficulty facing contemporary parapsychology is the:
lack of a reproducible ESP phenomenon
. Parapsychology refers to the: study of phenomena such as ESP and psychokinesis.
What is the best example of sensory interaction?
Sensory Interaction is where our senses interact with one another and influence each other. For example,
smell + texture + taste = flavor
. Also, when you have a cold ? and experience pain, your sense of taste may be affected and food could taste bland.
How does the presence of observers affect a person’s performance?
How does the presence of observers affect a person’s performance?
It improves performance on easy tasks and hinders a person’s performance on difficult tasks
.
What is the adjustable opening in the center of the eye through which light enters called?
Pupil
: The adjustable opening at the center of the iris through which light enters the eye. Retina: The light sensitive layer of tissue that lines the back of the eye.
How do our expectations contexts emotions and motivation influence our perceptions?
How do our expectations, contexts, emotions, and motivation influence our perceptions? →
Perceptual set
is a mental predisposition that functions as a lens through which we perceive the world. Our learned concepts (schemas) prime us to organize and interpret ambiguous stimuli in certain ways.
What makes it difficult to determine the minimum intensity of stimulus that a person can detect?
Why is it difficult to determine the minimum intensity of stimulus that a person can detect?
People can detect stimuli weaker than physicists can measure
. After you stare at a pattern of narrow lines long enough to fatigue certain feature detectors, you now stare at slightly wider lines.
What is the minimum amount of stimulus energy that a person can detect?
Absolute threshold
refers to the minimum amount of stimulus energy that must be present for the stimulus to be detected 50% of the time.
What is the minimum amount of stimulation a person can normally detect?
The absolute threshold
is the minimum amount of stimulation required for a person to detect the stimulus 50 percent of the time. The difference threshold is the smallest difference in stimulation that can be detected 50 percent of the time.
What is the detection and encoding of stimulus energies by the nervous system called?
The detection and encoding of stimulus energies by the nervous system is called.
sensation
. The processes by which we select, organize, and interpret sensory information in order to recognize meaningful objects and events is called. perception.
What do people’s responses to subliminal priming indicate?
People’s response to subliminal priming indicates that.
they are capable of processing information without any conscious awareness of doing so
. The principle that two stimuli must differ by a constant proportion for their difference to be perceived is known as. Weber’s law.
Is the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment?
Sensation
is the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. … Perception is the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.
