[分享] Cognitive“Loads”Are The Most“Expensive”

[Armuro (人是天生探索者)]

Cognitive“Loads”Are The Most“Expensive”

http://goo.gl/2sqD0

重點提要:

一. 人們觀看網站的時候主要會有三種load:

        1. cognitive (最"貴")
        2. Visual
        3. Motor (最"廉價")

二. It's all about trade-offs

三. Reduce load unless that you want to grab attention

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推 takanaka:nicely connected to the recent discussion
→ takanaka:the so-called "cognitive" here is more about
→ takanaka:explicit, executive functions. like reasoning
→ takanaka:cognition can be implicit and subconscious too
→ takanaka:such as automaticity and priming
→ takanaka:learning to drive cars is "expensive"
→ takanaka:once learned, driving is quite easy and "cheap"
→ takanaka:but it certainly involes cognition
推 takanaka:but yeah, basically we try not to reduce the need
→ takanaka:correction- we try to reduce the need for people to
→ takanaka:think in designs.
→ Armuro:只要understandable都是"cheap"的:)  開車比較不一樣的是
→ Armuro:他是procedural memory. 而操作網站通常都是declarative
→ Armuro:memory. 所以如果將介面更符合使用者的期待和mental model
→ Armuro:就會降低cognitive load. 另外一種方式就是提供visual cue
→ Armuro:來達到recognition rather than recall.
推 takanaka:there're a lot of theoretical issues here I think
→ takanaka:basic cognitive principles and human factors
→ takanaka:are certainly important and useful heuristics
→ takanaka:but whne considering human learning and adaptivity
→ takanaka:things can be possilbly more complex
→ takanaka:in many cognitive architectures
→ takanaka:thinking and reasoning would involve both
→ takanaka:procedural and declarative memories
→ takanaka:like those models in ACT-R
→ Armuro:That's true. But using an unfamiliar website involves
→ Armuro:more sense making and meaning looking. Every learning
→ Armuro:process first invovle declarative memory then procedura
→ Armuro:l memory. We're talking about how to design an interfac
→ Armuro:that when users are first exposed to it does not requir
→ Armuro:e much cognitive load. Once the users are familiar with
→ Armuro:the interface,it is definitely about procedural memory
推 takanaka:yes. I agreed :) I was kind of talking to generally
→ Armuro:But you are right, usability also involves learnability
→ takanaka:I think it's a nice example showing
→ takanaka:the distinction between "cognitive science"
→ takanaka:and the "cognitive aspects of HCI/design"
→ takanaka:they're related, and HCI borrows a lot from other
→ takanaka:disciplines
→ takanaka:but actully in CogSci, not everyone would agree
→ takanaka:the way we divide "memory" here
→ takanaka:it's viewed as only one theoretical approach
→ takanaka:while there're many others
→ Armuro:這不是我們的分類方式呀. 很多學者都是用這個方式來敘述
→ Armuro:skill. 認知科學有很多學派已經是眾所皆知的事情了. 但是
→ Armuro:基本上procedural memory沒有會不知道我們指的是什麼