Chapter 10 - Human information processing Flashcards
What factors affect attention and vigilance?
Environmental - Noise/temperature etc
Physiological - sleep loss, high blood pressure etc
Task factors - frequency of signals
What is the effect of high arousal on response?
it leads to faster but less accurate response
How long does information stay in the sensory store via the visual channel?
0.5 - 1s
How much information comes through the visual channel?
80%
How long does information stay in the sensory store if it has entered through the auditory channel?
2-8s
What are the features of working memory?
Can store 7 +/- 2 bits of info
lasts about 10-20 seconds
is highly sensitive to interruption
How can we improve our working memory?
chunking
associating
mnemonics
What are the 3 different info stores?
sensory store
working memory
long term memory
What is the capacity of the long term memory?
unlimited
What are the components of long term memory?
Semantic memory - meaning of words;general knowledge
Episodic memory - personal experience
Procedural memory - motor programmes
SEP
What is experience bias?
A tendency to distort recalled events to make them fit ones expectations
What happens to the performance of pilots as they age?
It decreases by a very small amount if at all