Sunday, January 18, 2009

[effects] do you know yours

Mass effect

What is the effect called:

1. ... commonly heard when a vehicle sounding a siren approaches, passes and recedes from an observer. The received frequency is increased (compared to the emitted frequency) during the approach, it is identical at the instant of passing by, and it is decreased during the recession.

2. ... primarily with hunters and trappers to criticize what they feel are irrationally emotional objections to the killing of "adorable" animals, regardless of what the hunters consider are environmental and economic realities.

3. ... referring to situations in which students perform better than other students simply because they are expected to do so.

4. ... which is a psychological phenomenon whereby a highly persuasive message, paired with a discounting cue, causes an individual to be more persuaded by the message (rather than less persuaded) over time. Some messages are often accompanied with a discounting cue (e.g., a message disclaimer, or perhaps the message was delivered by a low-credibility source) that would arouse a recipient’s suspicion of the validity of the message, and ultimately suppress any attitude change that might occur with exposure to the message alone.

5. ... a phenomenon where it becomes difficult to detect local feature changes in an upside down face, despite identical changes being obvious in an upright face.

doppler, bambi, pygmalion, sleeper, Thatcher


Gracchi said...

I saw a wonderful program on the first of those effects recently and its implications for physics- it was really interesting. Tangential comment I know but anyway fun post.

James Higham said...

I should have thought it was to the point, Tiberius. Thanks.

Jeremy Jacobs said...

1. Doppler effect?