KNH 184 EXAM 2 QUESTIONS WITH VERIFIED
ANSWERS
The extent to which a stimulus and a response are connected in a natural way is called
- Answers - Stimulus - Response Compatibility .
Using real-world skills, provide examples of "input" and "output" from the simplified
information processing model. - Answers - Input- a ball is being thrown at you
Output- you stick your hand out to catch the ball
Define reaction time (RT), movement time (MT), and response time? Provide examples
of each from real-world behavior. - Answers - RT = Period of time beginning when the
stimulus is first presented and ending when the movement response starts
MT = Period of time between the beginning of the movement and the end of the
movement
Ex. Seeing a baseball come at you and swinging the bat
Explain why reaction time (RT) is so important to the study of human information
processing? - Answers - You can use RT as a dependent variable to study the duration
and nature of information processing.
What is the difference between simple RT and choice RT? Which type of RT is typically
faster? - Answers - Choice = Performer must choose one response from a subset of
possible predetermined responses
Simple = Fastest situation involves only one stimulus and one response
Simple is faster
Average human simple RT is approximately _______ ms. - Answers - 200ms
List two real-world tasks for which RT is critical to task performance. - Answers - Driving
Soccer Goalie
List the three stages of information processing. - Answers - Pattern Recognition
Response Selection
Movement Programming
Describe a simple experiment you could do to test the existence of the first stage of
information processing? - Answers - Changing the stimulus and watch for the change in
RT
, How does an increase in the number of stimulus-response alternatives affect RT? -
Answers - Slower Reaction Time
What does Hick's Law state? - Answers - The more stimuli (or choices) users face, the
longer it will take them to make a decision.
Why is Hick's observation of the linear relationship between the Log2 of the number of
stimulus-response alternatives and RT referred to as a Law? - Answers - 1. Stable
relationship between the variables
2. Allows us to predict
Provide four examples of stimulus identification from the real world, two that involve
detecting simple stimuli, and two that involve pattern recognition. - Answers - Simple:
seeing a ball thrown at your face, hearing someone call your name
Pattern: knowing who to pass to in soccer, merging into traffic
What is looming? What sort of response does looming normally elicit in humans? -
Answers - Looming - an object is moved closer to our face and it appears bigger.
The looming effect occurs when a person flinches as an object is moved closer to their
face
Characterize the three memory systems in terms of their capacities and duration. -
Answers - 1. Short term sensory store (STSS)- holds large amounts of sensory info for
little time
2. Short term (ST)- medium amount of info for short amount of time
3. Long term (LT)- lots of info for a long time
Explain what you could do to increase the RT of your opponent in tennis? - Answers - A
fake
Using the same play over and over again to stimulate their anticipation, and then
making a different play when they expect you to make the same play
Which type of stimuli produces faster RTs, visual or auditory? - Answers - Auditory
What is the difference between temporal and spatial anticipation? Which type of
anticipation can a participant in a 100 m dash always take advantage of? - Answers -
Temporal anticipation- knowing when the stimulus will be presented
Spatial anticipation- advanced info on what is going to happen.
You know the response in 100m dash, and can take advantage of spatial anticipation
True or False
Anticipating correctly can improve performance, while anticipating incorrectly does not
affect performance positively or negatively. - Answers - False
ANSWERS
The extent to which a stimulus and a response are connected in a natural way is called
- Answers - Stimulus - Response Compatibility .
Using real-world skills, provide examples of "input" and "output" from the simplified
information processing model. - Answers - Input- a ball is being thrown at you
Output- you stick your hand out to catch the ball
Define reaction time (RT), movement time (MT), and response time? Provide examples
of each from real-world behavior. - Answers - RT = Period of time beginning when the
stimulus is first presented and ending when the movement response starts
MT = Period of time between the beginning of the movement and the end of the
movement
Ex. Seeing a baseball come at you and swinging the bat
Explain why reaction time (RT) is so important to the study of human information
processing? - Answers - You can use RT as a dependent variable to study the duration
and nature of information processing.
What is the difference between simple RT and choice RT? Which type of RT is typically
faster? - Answers - Choice = Performer must choose one response from a subset of
possible predetermined responses
Simple = Fastest situation involves only one stimulus and one response
Simple is faster
Average human simple RT is approximately _______ ms. - Answers - 200ms
List two real-world tasks for which RT is critical to task performance. - Answers - Driving
Soccer Goalie
List the three stages of information processing. - Answers - Pattern Recognition
Response Selection
Movement Programming
Describe a simple experiment you could do to test the existence of the first stage of
information processing? - Answers - Changing the stimulus and watch for the change in
RT
, How does an increase in the number of stimulus-response alternatives affect RT? -
Answers - Slower Reaction Time
What does Hick's Law state? - Answers - The more stimuli (or choices) users face, the
longer it will take them to make a decision.
Why is Hick's observation of the linear relationship between the Log2 of the number of
stimulus-response alternatives and RT referred to as a Law? - Answers - 1. Stable
relationship between the variables
2. Allows us to predict
Provide four examples of stimulus identification from the real world, two that involve
detecting simple stimuli, and two that involve pattern recognition. - Answers - Simple:
seeing a ball thrown at your face, hearing someone call your name
Pattern: knowing who to pass to in soccer, merging into traffic
What is looming? What sort of response does looming normally elicit in humans? -
Answers - Looming - an object is moved closer to our face and it appears bigger.
The looming effect occurs when a person flinches as an object is moved closer to their
face
Characterize the three memory systems in terms of their capacities and duration. -
Answers - 1. Short term sensory store (STSS)- holds large amounts of sensory info for
little time
2. Short term (ST)- medium amount of info for short amount of time
3. Long term (LT)- lots of info for a long time
Explain what you could do to increase the RT of your opponent in tennis? - Answers - A
fake
Using the same play over and over again to stimulate their anticipation, and then
making a different play when they expect you to make the same play
Which type of stimuli produces faster RTs, visual or auditory? - Answers - Auditory
What is the difference between temporal and spatial anticipation? Which type of
anticipation can a participant in a 100 m dash always take advantage of? - Answers -
Temporal anticipation- knowing when the stimulus will be presented
Spatial anticipation- advanced info on what is going to happen.
You know the response in 100m dash, and can take advantage of spatial anticipation
True or False
Anticipating correctly can improve performance, while anticipating incorrectly does not
affect performance positively or negatively. - Answers - False
