Perception of Simultaneous Dichotic and Monotic Monosyllables

Lowe, S. S.; Cullen, John K.; Berlín, Charles I.; Thompson, Christopher F.; Willett, Mary E.

doi:10.1044/jshr.1304.812

Cited by 22 publications

(3 citation statements)

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“…A true monaural condition was limited to a single ear to decrease the testing time. The right ear was selected for the true monaural condition because previous research suggests there is a right ear advantage for speech sounds (e.g., Lowe et al, 1970;Tadros et al, 2005).…”

Section: Methodsmentioning

confidence: 99%

Are Two Ears Not Better Than One?

McArdle

Killion²,

Mennite³

et al. 2012

J Am Acad Audiol

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Section: Methodsmentioning

confidence: 99%

Are Two Ears Not Better Than One?

McArdle

Killion²,

Mennite³

et al. 2012

J Am Acad Audiol

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“…Experiments using dichotic presentation of consonant-vowel syllables with acoustic onset alignment have shown an advantage for unvoiced initial stop consonants when competing with voiced stops (Myers, 1970;Lowe, Cullen, Berlin, Thompson, & Willett, 1970). Since Marcus (1975) has shown that P-centers of a typical set of unvoiced consonant-vowel syllables, /pa, ta, ka/, lag behind those of their voiced counterparts, /ba, da, ga/, by up to 40 msec, these previous results may now be seen to be an example of the normal advantage for the lagging member of a dichotic pair.…”

Section: P-centees and Simultaneitymentioning

confidence: 99%

Perceptual centers (P-centers).

Morton¹,

Marcus²,

Frankish³

1976

Psychological Review

324

231

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Words presented with regular acoustic onsets are not perceptually regular. The requirements for perceived regularity were investigated, and the perceptual center (P-center) of a word was defined as its psychological moment of occurrence. Some properties of these perceptual centers have been empirically determined, and the range of their applicability is sketched. In particular, it is already clear that temporal alignment of P-centers is a relevant variable in dichotic presentation of speech.

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“…Two types of ear asymmetry are known: (l) a difference in sensitivity of the two ears, and (2) a right or left ear "dominance." such as that described by Broadbent (954), Kimura (1961Kimura ( , 1967, Lowe et al (1970), Efron and Yund (1974), and others in a wide variety of dichotic listening experiments. Both types of asymmetry will give rise to the same phenomenal cue.…”

Section: Psychophysicalmentioning

confidence: 99%

Dichoptic and dichotic micropattern discrimination

Yund

Efron

1974

Perception & Psychophysics

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Ss compared two rapidly successive, brief, discriminably different stimulus elements, called a micropattern, with a second micropattern composed of the same two stimulus elements presented in reverse temporal order. Discriminations could be made between two such micropatterns in the monaural (monocular) as well as in the dichotic (dichoptic) modes of presentation. Discrimination between micropatterns was based on the perceptual dominance of the temporally trailing stimulus element in both modalities and in both modes of presentation. While monaural (monocular) micropattern discrimination is significantly superior to dichotic (dichoptic) discrimination, the existence of dichotic (dichoptic) discrimination demonstrates that no essential peripheral process is required for micropattern discrimination.Recent experiments in this laboratory in the visual, auditory, and vibratory modalities (Efron, 1973) have been concerned with the discrimination of brief, complex stimuli differing only in their fine temporal structure. In these experiments, Ss compared two consecutive, brief, discriminably different stimulus elements, called a micropattern, with a second micropattern composed of the same two stimulus elements presented in the reverse temporal order. Ss readily discriminated between micropattems having reversed temporal order of stimulus elements in all three modalities, even when the temporal asynchrony between the stimulus elements was so far below the threshold for making temporal order judgments that each micropattern was experienced as a unitary perceptual event. The discriminations were based on the perceptual dominance of the second or trailing stimulus element. Additional studies revealed that the trailing stimulus element phenomenally dominated the perception of each micropattem by virtue of a retroactive degradation of the perceptual experience of the leading element. This perceptual degradation of the leading stimulus element by the trailing element did not have the properties of retroactive masking.In all the previous experiments, the two stimulus elements of each micropattem were presented to the same eye, ear, or skin location-an experimental paradigm which did not permit any analysis of the neuroanatomical locus of the retroactive interaction. In the experiments to be described here (in the auditory and visual modalities), the same micropattems were presented dichotically (dichoptically)-one stimulus element of the micropattern to each ear (eye). If there is an essential peripheral process involved in micropattem discrimination in the basilar membrane or in the retina, the phenomenon of perceptual dominance of the trailing stimulus element would not be expected in such dichotic (dichoptic) presentations. The purpose of the present experiments was to determine (l) whether dichotic and *From the VA Hospital and the Department of Neurology, University of California, School of Medicine, Davis, California. 383 dichoptic micropattern discriminations are possible, (2) whether the discriminations (if possible) a...

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Perception of Simultaneous Dichotic and Monotic Monosyllables

Cited by 22 publications

References 0 publications

Are Two Ears Not Better Than One?

Are Two Ears Not Better Than One?

Perceptual centers (P-centers).

Dichoptic and dichotic micropattern discrimination

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