منابع مشابه
Loudness and Loudness Discrimination Revisited
We present evidence that the psychophysical function relating loudness to sound pressure is governed by a nonlinear gain control system, one of whose functions is to protect the sensory system from overload. Specifically, the loudness function is altered nonlinearly when loud sounds are added in an identification task previously containing only soft sounds but not vice
متن کاملTemporal integration of loudness, loudness discrimination, and the form of the loudness function.
Temporal integration for loudness of 5-kHz tones was measured as a function of level between 2 and 60 dB SL. Absolute thresholds and levels required to produce equal loudness were measured for 2-, 10-, 50-, and 250-ms tones using adaptive, two-interval, two-alternative forced-choice procedures. The procedure for loudness balances was new and employed ten interleaved tracks to obtain concurrent ...
متن کاملLoudness growth in forward masking: relation to intensity discrimination.
The growth of loudness of a tone burst following an intense forward masker was measured as a function of the tone level. The level of the forward-masked tone was adjusted to balance the loudness of a standard tone presented without a forward masker, using a 2AFC, double-staircase, tracking procedure. The forward masker was a 90-dB SPL, 100-ms, 1000-Hz pure tone. The standard tone and the masked...
متن کاملRepresentation of similarity in 3D object discrimination
How does the brain represent visual objects? In simple perceptual generalization tasks, the human visual system performs as if it represents the stimuli in a low-dimensional metric psychological space 1]. In theories of 3D shape recognition, the role of feature-space representations (as opposed to structural 2] or pictorial 3] descriptions) has been for a long time a major point of contention. ...
متن کاملWord Sense Discrimination Using Context Vector Similarity
This paper presents the application of context vector similarity for the purpose of word sense discrimination during query translation. The random indexing vector space method is used to accumulate the context vectors. Pair wise similarity of the context vectors of ambiguous terms with that of anchor terms indicated the possible correct translation of a query term. Two retrieval experiments wer...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1968
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03212774