Engineering Psychology cognitive psychology – creativity design – transportation psychology – Operator Control operator control – HMI – visualisation of information – work&organisation psychology – theories of personality http://users.fs.cvut.cz/~jurajaku/ing-psych Jakub Jura Jakub.Jura@fs.cvut.cz http://users.fs.cvut.cz/~jurajaku

Course website http://users.fs.cvut.cz/~jurajaku/ing-psych/

What is Psychology? Psychology is the science of behavior and mental processes. Disciplines General Psychology Social Psychology Developmental Psychology Psychology of Personality Psychometrics Psychosemantics Clinical Psychology Psychotherapy

What is Engineering psychology? Psychological approach to the solution of technical problems. Engineering Psychology is mutidisciplinary science. Engineering Psychology is concerned with adapting the equipment and environment to people, based upon their psychological capacities and limitations (Blum, 1952)  Roots: Army psychology Ergonomics  Transportation psychology Personnel psychology Experimental psychology

Problems Creative design (inventions, innovations) aviation (altimeter  - misreading error ) munitions factories (First World War)  Human resources Testing - Selecting Training Adaptation of technical equipments to human operator nuclear industry (Černobyl, Three Mile Island )  transportation (speed merchant)  Artificial intelligence (MAS, UNS)  assimilation accommodation

LAB TASKS Afterimage (Emmer law) Indicator evaluation Reaction time Fechner law Weber law EDA (Electro-Dermal Activities) Car driver analysis Skin sensitivity

1 Emmert’s law Emil Emmert (1844 - 1911) Emmert law: The afterimage size changes proportionally with its distance from the observer. a a’ l l’

2 Indicator evaluation

3 Reaction time Human reaction to visual signal … cca 250 ms Human reaction to auditive signal … cca 150 ms

4 Fechner law Gustav Theodor Fechner (1801–1887) Dependence of sense impression on the intensity of stimulus is logarithm. P = k * ln (S) P … percept k … constant S … stimulus

5 Weber law Ernest Heinrich Weber  (1795–1878) Experiment with weight difference Just noticeable difference (jnd) between two weights was approximately proportional to the mass of the weights I = kw* I I … Base intensity (Total weight) I … Discrimination threshold (Weight difference) kw Constatnt (Weber Fraction) We can‘t perceive the intensity of stimulus directly, but in relation to the reference value.

6 EDA (Electro-Dermal Activities)

7 Car driver analysis Quantitatively and qualitatively evaluate the inuence of phone use on driving abilities. Discover the quantitative dierence in driving performance with/without distraction. Qualitatively nd out what the operator (driver) does during the mobile phone ring and when he/she telephones

8 Haptic sensibility Tactile compasses The brain – projection zone. Skin surface and brain surface.

Model of humane operator control Sensoric processes Internal proceses Motoric processes Sensation Perception Thinking, decision making, problem solving. Behaviour, Motoric func. Handlers Pilot lamps Controled system Aktors Functionla principles of controled sys. Sensors 15

Cognitive model of the operator

BIOCYS Biocybernetic Analysis System (BIOCYS) for HMI (Han Machine Interface) - related cognitive factor analysis Measuring of biological variables as a EEG, EMG, EDA ... Analysis of the data (expert system) Incorporating new information in whole control system.

Eye tracking Visualisation of industrial processes Feed-back improvement Design orientaton to Intuitiveness (first use) Optimal use (after learning) Speed Reliability

Cognitive model for HMI design

Creative conceptaul design

Operator selection (testing) Computer adaptive testing Transportation psychology