Information Processing

1. Information Processing

2. Sensory System • Visual System • Eyes – sense position based on what we see • Vestibular System • Organs within inner ear – sense position by the way we are balanced • Somatosensory System • Nerves in the skin, muscle and joints – sense position based on gravity, feeling and sound

3. House Red Paper Blue Water Green Table Yellow

5. Believingcan be not seeing! A B

7. Perception A BIRD IN THE THE HAND

8. Amazing Aoccdrnig to a rscheearchr at Cabmrigde Uinervtisy, it deosn’t mttaer in what order the ltteers ina word are, the only iprmoetnt thing is that the frist and lsat ltteer be at the rghit pclae. The rset can be a total mses and you can sitl raed it wouthit a porbelm. This is bcuseae the human mind deos not raed ervey lteter by istlef, but the word as a whole. Amzanig huh ?

12. Memory, Memories

13. Memory Exercise

14. Short Term Memory Iconic Memory Things that you see Last for 0.5 – 1 second Echoic Memory Things that you hear Last for 2 – 8 seconds Working Memory We can remember about 7 items for 10 -20 seconds

15. Long Term Memory Episodic Memory Memory of events which can be lost Semantic Memory Memory of meaning The context is never lost Motor Programmes Become Automatic Often Physical actions

16. Simple Reaction Time • The time needed to make one choice • Depends on your state, eg. well rested or tired • The time can be up to 1/5th second • 26 metres at 300 kts.

17. 3 Categoriesof Human Factor Error • Perceptual Error • Response Error • Attention Error

18. Attention! Attention is sometimes Selective Focused Divided Sustained

19. LimitedChannel Capacity • The brain operates as a single-channel processor: • Primary task - on which we focus attention. • Secondary tasks - ancillary activities that we don't focus attention on but that can overload our capacity.