KORG DSN-12

普通のオシロスコープでリサージュ曲線を描かせる場合は，X軸とY軸にそれぞれ信号を入れる．Nintendo 3DS 向けの KORG DSN-12 に搭載された3Dオシロは（内部で生成した信号専用ながら）Z軸を持ち，X軸の時間微分を割り当ててある．

空間的な相（phase，日本語では位相とも言う）と時間的な相の両方を扱うリサージュ曲線と言えるかもしれない．

写真はASCII.jpから．

Experimental evidence of massive-scale emotional contagion through social networks

Abstract

Emotional states can be transferred to others via emotional contagion, leading people to experience the same emotions without their awareness. Emotional contagion is well established in laboratory experiments, with people transferring positive and negative emotions to others. Data from a large real-world social network, collected over a 20-y period suggests that longer-lasting moods (e.g., depression, happiness) can be transferred through networks [Fowler JH, Christakis NA (2008) BMJ 337:a2338], although the results are controversial. In an experiment with people who use Facebook, we test whether emotional contagion occurs outside of in-person interaction between individuals by reducing the amount of emotional content in the News Feed. When positive expressions were reduced, people produced fewer positive posts and more negative posts; when negative expressions were reduced, the opposite pattern occurred. These results indicate that emotions expressed by others on Facebook influence our own emotions, constituting experimental evidence for massive-scale contagion via social networks. This work also suggests that, in contrast to prevailing assumptions, in-person interaction and nonverbal cues are not strictly necessary for emotional contagion, and that the observation of others’ positive experiences constitutes a positive experience for people.

こちらにフルテキストがある．

Sony's MESH

Sonyのプレスリリース．

Shadow Magic

Scribble

Scribbleは，任意の物体のカラーを取得して，その場でインクを調合してくれるペン．Kickstarterで資金調達中だ．インクを調合するところが新しい．

An iPhone App Knows How You Feel By Checking Your Pulse

Gizmodoより．iPhone内蔵カメラを使って脈拍を測り，そこからユーザの感情を推定するアプリ．一般的な状況でいつでも感情がわかるかどうかという点は別にして，ゲームや映像ビューアと組み合わせたり，環境と連動させたりと用途はいろいろありそう．