allocation of capacity
when limited amount of capacity is distributed to various task.
a physiological state that influences the distribution of mentally capacity to various tasks.
a decrease in the perceived loudness of an unattended message.
performing mental operations that require very little mental effort.
a theory that attempts to explain how people select information when some information processing stage become overloaded with too much information.
a theory that proposes that we have a limited amount of mental effort to distribute across tasks, so there are limitations on the number of tasks we can perfomr at the same time.
investing mental effort in one or more task.
the influence of the surrounding context on the recognition of patterns.
an automatic influence where people direct their attention
the proposition that bottleneck occurs at the pattern recognition stage and that attention determines what information reaches the pattern recognition stage.
learning that occurs when we do not make a conscious effort to learn
proposal that the bottleneck occurs when information is selected for memory
limited-capacity perceptual channel
the pattern recognition stage of Broadbent's model, which protected by the filter (attention) from becoming overloaded with too much perceptual information.
the amount of mental capacity required to perform a task
a conscious decision to allocate attention to certain task or aspects of te environment
a theory that proposes that people's intentions and the demands of the task determine the information-processing stage at which information is selected
the selective aspects of attention we pay attention to some aspectsw of our environment and ignore other aspects
an experimental method that requires people to repeat the attended message out loud
the finding that it takes longer to name the color of theink a work is printed in when the word is the name of a competing color (for example, the word red printed in blue ink)
a task that typically measures how quickly people can react to target stimulus to evaluate the capcity demands of the primary task
the minimal amount of activation required to become consciously aw3are of a stimulus
How is mental effort measured?
Amount of blood flow in parts of the brain as measured by an fMRI. (46)
Describe Broadbent's study.
Subjects wore headphones and heard different numbers in each ear. When asked to report back the numbers they listed them by ear.
What is a limitation of the filter model?
the sensory store would have to last fairly long to operate as proposed by the filter model.
Broadbents helped develop which model of attention?
The filter model.
Shadowing helped to support which model?
Who developed the idea of threshold and selective filter?
Can the threshold for specific words/topics be changed.
Yes, context and expectations can momentarily lower a threshold.
Name the 5 people who explored the bottleneck theory.
Broadbent, Treisman, Deutsch and Deutsch, and Norman.