Thresholds
Psychology ⇒ Sensation and Perception
Thresholds starts at 10 and continues till grade 12.
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Describe how adaptation can affect sensory thresholds.
Describe how individual differences can affect sensory thresholds.
Describe how signal detection theory differs from the concept of absolute threshold.
Describe how the concept of threshold applies to hearing a faint sound in a quiet room.
A person is exposed to a series of lights of increasing brightness. The point at which they first report seeing the light is their ________ threshold.
A person is exposed to two tones: one at 1000 Hz and another at 1005 Hz. If they can just notice the difference, what is the difference threshold for this person?
A researcher finds that a participant can detect a light at 10 units of intensity but not at 9 units. What is the participant's absolute threshold for this light?
Describe how the concept of threshold applies to hearing a faint sound in a quiet room.
Which law states that the size of the just noticeable difference is a constant proportion of the original stimulus? (1) Fechner's Law, (2) Weber's Law, (3) Stevens' Power Law, (4) Signal Detection Theory
Which of the following best describes a subliminal message? (1) A message above the absolute threshold, (2) A message below the absolute threshold, (3) A message at the difference threshold, (4) A message at the terminal threshold
Which of the following best describes the difference threshold? (1) The minimum intensity of a stimulus that can be detected, (2) The smallest change in a stimulus that can be detected, (3) The maximum intensity of a stimulus, (4) The average intensity of a stimulus
Which of the following best illustrates the concept of a difference threshold? (1) Hearing a sound for the first time, (2) Noticing when the volume of music increases slightly, (3) Smelling a flower, (4) Seeing a bright light
A person is exposed to a series of lights of increasing brightness. The point at which they first report seeing the light is their ________ threshold.
The ________ threshold is the point at which a stimulus is so intense that it can no longer be detected as increasing.
The concept that the JND is a constant proportion of the original stimulus is known as ________ Law.
The difference threshold is also called the ________ noticeable difference.
True or False: Sensory thresholds can be influenced by psychological factors such as attention and motivation.
True or False: Terminal threshold refers to the maximum level of stimulus intensity that can be detected.
True or False: The absolute threshold can vary depending on environmental conditions.
True or False: The absolute threshold is always a fixed value for a given sense.
