Gavin Bell – designing website for people
tell 5 stories – cognitive psychology. started 1956. we are systems of human behavior. make decisions based on systems process.
psychology provides framework for understanding human behavior. Schema – model of understanding of how world works. 1832 – Bartlett. teddy bear schema – if teddy bear misses ear, is it still a bear? how tell if it is a restaurant or a take away? look for congruence – expectations meet reality.
if not, congruence can cause problem. Adaptation – schemas can change. takes some time. web development and schemas – gradual change better because it allows audience to make adaptations. measured development. small increments better.
Affordances – Gibson. independent and inherent properties. does not need specific person. chair has affordances. schemas are models. make sure affordances match (use + sign for adding and for enlarging – not a good thing.
Cognitive dissonance – don’t want to confuse people. Consistent vs coherent. rules vs. context. implicit vs explicit learning.
Flow – lost in the moment. full involvement. try to engage people’s flow state. challenge people. add some difficulty to engage people.
Challenge their curiosity to increase flow. Pivots – changes in direction based on different types of links.
Reinforcement. operant conditioning. skinner. slower updates are better. random updates not good. do not want to make people have to check at random times.
Dunbar number – 150 people. Social software – not every update is joyful. try provide filters. need to be able to deny info feeds from some people. healthy to ignore and forget things. Attention – gating information to focus attention. Memory – much more news than 100 years ago. it is associative. primacy and recency effects. Miller’s number – 7 ± 2 . organize memory. Consciousness – 1) sentient – subjective experience. 2) self-knowledge – externalization of information. needed for social interactions. social relationships to be supported.
Collective intelligence – extract information from large amounts of data.
Technorati Tags: Web 2.0