Chapter 2 Norman Flashcards
Declarative Memory
A memory from factual information
Procedural Memory
Most easily remembered by recalling an activity
Reflective Level
Home of conscious cognition, where deep understanding develops, where reasoning and conscious decision making takes place. (plan,^compare) High-level reflective cognition can trigger lower-level emotions. lower-level emotions can trigger higher-level reflective cognition.
Behavioral Level
Home of learned skills, triggered by situations that match the appropriate patterns. Largely subconscious. (specify, ^interpret)
Visceral Level
Most basic level of processing. Respond quickly and subconsciously. Make quick judgments. Sensitive only to the current state of things. (perform,^perceive)
Flow
Complete immersion into an activity. How people interact with work and play. Losing track of time and the outside environment. Occurs when the challenge slightly exceeds our skill level.
Learned Helplessness
The situation in which people experience repeated failure at a task. As a result, they decide the task can not be done, at least by them, they are helpless.
Feedforward
Information that helps in the execution. (the doing) Helps answer the questions. Accomplished through the appropriate use of signifiers, constraints, and mappings. The conceptual model plays an important role.
Feedback
Communicating the results of an action. Info that aids in the understanding of what has happened. Accomplished through explicit information about the impact of the action. The conceptual model plays an important role.
Gulf Execution
Figuring out how something operates. How do I work this? What can I do?
Gulf Evaluation
Figuring out why something happened. What happened? Is this what I wanted?
The seven stages of Action
Goal (form the goal) Bridge of Execution: Plan (the action) Specify (an action sequence) Perform (the action sequence) Bridge of Evaluation: Perceive (the state of the world) Interpret (the perception) Compare (the outcome with the goal)
Discoverability
Determines what actions are possible and the current state of the device.
Perceived Causal Relationship
The causal relationship does not have to exist, the person simply has to think it is there.
Subconscious
Operations of the brain hidden beneath our awareness. Fast, automatic, multiple resources, controls skilled behavior.