Perception, Affordances, Safety, and Design - Lecture by PJ Treffner Video
Perception, affordances [metaffordances] and safety - designing good interfaces.
An invited lecture (*) for psychology department given by Dr. PJ Treffner, University of Waikato, New Zealand. Time tags shown below.
http://www.metaffordance.com/
(*) for Prof. Sam Charlton.
The psychological basis for safety and safe activity is perceptual information together with its successful detection. Building upon Gibson's theory of affordances (the perceivable opportunities for action in the environment), a solid understanding of affordances for safety considerations is developed using the early experiments on affordances as examples - the stair climbability and doorway passability studies. The issue of perception and attention in driving is introduced as a serious problem for designers of technology interfaces. These affordances-about-affordances constitute what I call "metaffordances" - and remind us how HCI design (e.g., augmented reality, e-learning) requires a careful consideration of useability from a perceptual (affordance) perspective. Central to this is an understanding of the importance of motion-based information for everyday event perception, and likewise the role of occlusion information in the very definition of our reality. Thus, the study of safety is both an ontological and epistemological problem as well as a practical one: a correct understanding of animate beings' perceptual processes is required if designers are to create new affordances that are effective and enjoyable to use.
Part 1 develops a solid understanding of the classic body-scaling affordance studies.
Part 2 discusses the affordances of new information-based technologies.
PART 1
01:53 - anthropometry - measuring the disembodied body
04:55 - VIDEO - tree-climbing goats
05:50 - stair climbing - maximum height
10:57 - maximum height perceivable? - results
15:26 - preferred height?
16:25 - preferred height: results
20:22 - preferred height perceivable?
21:35 - preferred height perceivable: results
22:17 - monument steps (and fail)
23:05 - affordances: direct perception
31:45 - walking through doorways
32:21 - walking through doorways: results
35:01 - Q. what about individual differences, cultures, etc?
40:52 - passable doorway perceivable?
47:46 - summary: affordances and information
51:16 - eye-height information - about both you AND the world
56:25 - VIDEO (funny) - walking on high heels
---------------------- BREAK ----------------------
PART 2
56:47 - awareness for other animals?
1:01:33 - VIDEO - kea bird, animal intelligence & affordances
1:04:31 - weird stairs un-affordance - safe?
1:04:57 - Affordances and AI?
1:06:17 - VIDEO - Big Dog robot (Boston Dynamics)
1:10:00 - VIDEO - dancing robots (Sony)
1:13:05 - good design and affordances
1:14:56 - James Gibson's definition of affordances
1:17:54 - seeing the future - driving - field of safe travel
1:19:42 - Don Norman's affordances for design
1:23:35 - technology's virtual affordances ("metaffordances")
1:25:50 - useability and HCI
1:27:23 - VIDEO - Don Norman on affordances
1:29:38 - interaction design
1:30:57 - virtual reality (VR) and HCI
1:31:31 - VR and virtual exercise (Treffner lab, 2003)
1:32:04 - VR and virtual embodiment
1:34:48 - augmented reality (AR) and mobile phones
1:35:12 - VIDEO - AR on a phone (Layar)
1:37:06 - VIDEO - AR at HIT Lab, New Zealand
1:39:11 - VIDEO - AR navigation on a phone...in a car?!!?
1:40:13 - occlusion information defines reality
1:40:38 - invariants are the information - optic flow
1:40:58 - development, learning, and the kitten carousel
1:41:38 - visual cliff - affordances for danger
1:42:26 - summary - direct perception of meaning
1:42:55 - perception-action cycle
1:43:10 - moving room - visual information crucial for balance
1:43:40 - VIDEO - Lee's moving room
1:45:17 - conclusions - what is safety? I PERCEIVE, therefore I am.
Related lecture on philosophical foundations of direct perception:
https://www.youtube.com/watch?v=_bf3lQ95ghk&feature=youtu.be
http://www.metaffordance.com
About the Site 🌐
This site provides links to random videos hosted at YouTube, with the emphasis on random. 🎥
Origins of the Idea 🌱
The original idea for this site stemmed from the need to benchmark the popularity of a video against the general population of YouTube videos. 🧠
Challenges Faced 🤔
Obtaining a large sample of videos was crucial for accurate ranking, but YouTube lacks a direct method to gather random video IDs.
Even searching for random strings on YouTube doesn't yield truly random results, complicating the process further. 🔍
Creating Truly Random Links 🛠️
The YouTube API offers additional functions enabling the discovery of more random videos. Through inventive techniques and a touch of space-time manipulation, we've achieved a process yielding nearly 100% random links to YouTube videos.
About YouTube 📺
YouTube, an American video-sharing website based in San Bruno, California, offers a diverse range of user-generated and corporate media content. 🌟
Content and Users 🎵
Users can upload, view, rate, share, and comment on videos, with content spanning video clips, music videos, live streams, and more.
While most content is uploaded by individuals, media corporations like CBS and the BBC also contribute. Unregistered users can watch videos, while registered users enjoy additional privileges such as uploading unlimited videos and adding comments.
Monetization and Impact 🤑
YouTube and creators earn revenue through Google AdSense, with most videos free to view. Premium channels and subscription services like YouTube Music and YouTube Premium offer ad-free streaming.
As of February 2017, over 400 hours of content were uploaded to YouTube every minute, with the site ranking as the second-most popular globally. By May 2019, this figure exceeded 500 hours per minute. 📈
List of ours generators⚡
Random YouTube Videos Generator
Random Film and Animation Video Generator
Random Autos and Vehicles Video Generator
Random Pets and Animals Video Generator
Random Travel and Events Video Generator
Random People and Blogs Video Generator
Random Entertainment Video Generator
Random News and Politics Video Generator
Random Howto and Style Video Generator
Random Education Video Generator