作者Armuro (人是天生探索者)
看板HCI
標題[分享] Cognitive“Loads”Are The Most“Expensive”
時間Sun Feb 20 08:12:02 2011
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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1F：推 takanaka:nicely connected to the recent discussion 02/20 09:41
2F：→ takanaka:the so-called "cognitive" here is more about 02/20 09:43
3F：→ takanaka:explicit, executive functions. like reasoning 02/20 09:44
4F：→ takanaka:cognition can be implicit and subconscious too 02/20 09:44
5F：→ takanaka:such as automaticity and priming 02/20 09:45
6F：→ takanaka:learning to drive cars is "expensive" 02/20 09:45
7F：→ takanaka:once learned, driving is quite easy and "cheap" 02/20 09:46
8F：→ takanaka:but it certainly involes cognition 02/20 09:47
9F：推 takanaka:but yeah, basically we try not to reduce the need 02/20 09:49
10F：→ takanaka:correction- we try to reduce the need for people to 02/20 09:50
11F：→ takanaka:think in designs. 02/20 09:50
12F：→ Armuro:只要understandable都是"cheap"的:) 開車比較不一樣的是 02/20 11:06
13F：→ Armuro:他是procedural memory. 而操作網站通常都是declarative 02/20 11:06
14F：→ Armuro:memory. 所以如果將介面更符合使用者的期待和mental model 02/20 11:09
15F：→ Armuro:就會降低cognitive load. 另外一種方式就是提供visual cue 02/20 11:10
16F：→ Armuro:來達到recognition rather than recall. 02/20 11:10
17F：推 takanaka:there're a lot of theoretical issues here I think 02/20 11:17
18F：→ takanaka:basic cognitive principles and human factors 02/20 11:18
19F：→ takanaka:are certainly important and useful heuristics 02/20 11:18
20F：→ takanaka:but whne considering human learning and adaptivity 02/20 11:18
21F：→ takanaka:things can be possilbly more complex 02/20 11:19
22F：→ takanaka:in many cognitive architectures 02/20 11:22
23F：→ takanaka:thinking and reasoning would involve both 02/20 11:22
24F：→ takanaka:procedural and declarative memories 02/20 11:23
25F：→ takanaka:like those models in ACT-R 02/20 11:23
26F：→ Armuro:That's true. But using an unfamiliar website involves 02/20 11:41
27F：→ Armuro:more sense making and meaning looking. Every learning 02/20 11:42
28F：→ Armuro:process first invovle declarative memory then procedura 02/20 11:43
29F：→ Armuro:l memory. We're talking about how to design an interfac 02/20 11:44
30F：→ Armuro:that when users are first exposed to it does not requir 02/20 11:45
31F：→ Armuro:e much cognitive load. Once the users are familiar with 02/20 11:45
32F：→ Armuro:the interface,it is definitely about procedural memory 02/20 11:46
33F：推 takanaka:yes. I agreed :) I was kind of talking to generally 02/20 11:47
34F：→ Armuro:But you are right, usability also involves learnability 02/20 11:47
35F：→ takanaka:I think it's a nice example showing 02/20 11:48
36F：→ takanaka:the distinction between "cognitive science" 02/20 11:48
37F：→ takanaka:and the "cognitive aspects of HCI/design" 02/20 11:48
38F：→ takanaka:they're related, and HCI borrows a lot from other 02/20 11:49
39F：→ takanaka:disciplines 02/20 11:49
40F：→ takanaka:but actully in CogSci, not everyone would agree 02/20 11:49
41F：→ takanaka:the way we divide "memory" here 02/20 11:50
42F：→ takanaka:it's viewed as only one theoretical approach 02/20 11:50
43F：→ takanaka:while there're many others 02/20 11:50
44F：→ 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 02/20 11:54
45F：→ Armuro:skill. 認知科學有很多學派已經是眾所皆知的事情了. 但是 02/20 11:55
46F：→ Armuro:基本上procedural memory沒有會不知道我們指的是什麼 02/20 11:55