منابع مشابه
Echoes of echoes? An episodic theory of lexical access.
In this article the author proposes an episodic theory of spoken word representation, perception, and production. By most theories, idiosyncratic aspects of speech (voice details, ambient noise, etc.) are considered noise and are filtered in perception. However, episodic theories suggest that perceptual details are stored in memory and are integral to later perception. In this research the auth...
متن کاملRegeneration of photon echoes with amplified photon echoes.
Photon-echo-based devices have been proposed for many applications in data storage, image processing, and optical communications. Many of these applications would benefit if the output from the photon-echo process could be used as input in a second photon-echo process. We demonstrate the generation of such secondary echoes, using the amplified output from an initial photon-echo process. The amp...
متن کاملEchoes and revival echoes in systems of anharmonically confined atoms
We study echoes and what we call “revival echoes” for a collection of atoms that are described by a single quantum wave function and are confined in a weakly anharmonic trap. The echoes and revival echoes are induced by applying two successive temporally localized potential perturbations to the confining potential, one at time t = 0, and a smaller one at time t = τ . Pulselike responses in the ...
متن کاملSpin Echoes
Intense radiofrequency power in the form of pulses is applied to an ensemble of spins in a liquid placed in a large static magnetic Geld H&. The frequency of the pulsed r-f power satisGes the condition for nuclear magnetic resonance, and the pulses last for times which are short compared with the time in which the nutating macroscopic magnetic moment of the entire spin ensemble can decay. After...
متن کاملEchoes of the Month
The Paris Morgue is no more. It is to be replaced by an entirely new type of institution. The original Morgue, which overhangs the riverside close by Notre Dame, was founded in 1864. It was devoted to the reception of the bodies of those to whom death had come by other than natural means, and the bodies of people who had met with violent ends were in manjr cases preserved there for many years u...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1981
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.213.4512.1063