The effect of certain factors on the convulsions in electric shock treatment. M Perceptual and psychomotor performance in pacemaker patients: Influence of heart rate, posture and of 2-oxi- Speech in depression: A methodological study of prosody. K childhood onset deficits in attention motor control and perception. M.

In addition, the perceptual magnet effect shows several qualitative similarities to categorical effects in perceptual domains outside of language, as vowel perception is continuous rather than sharply categorical (Fry, Abramson, Eimas, & Liberman, 1962) and the degree of category influence can vary substantially across testing conditions (Gerrits & Schouten, 2004).

The resulting per-ceptual pattern is shown in Figure 1 (a). Note that if there is no uncertainty about category membership, perception of speech sounds further from the category mean is more bi- The results demonstrated that sensitivity peaks at vowel boundaries were more influenced by stimulus range than were perceptual magnet effects; peaks in sensitivity near the /i/-/e/ boundary were reduced with restricted stimulus ranges and one-step intervals, but nüfüma in discrimination near the best exemplars of /i/ were present in all conditions. Abstract. The perceptual magnet effect describes an increased generalization capability for the perception of vowels, if the perceived vowels are prototypical. We here propose an unsupervised, adaptive neural network model which allows to control the relation between stimulus density and generalization capability, and which can account for the perceptual magnet effect. This is the essence of ‘perceptual magnet theory’ (=-=Kuhl and Iverson 1995-=-) in which the phonetic prototypes of one’s native language act like magnets, or, in neural network terms, attractors (Van Geert 1993, 1994), distorting the perception of items in their vicinity to ma Mapping the perceptual magnet effect for speech using signal detection theory and multidimensional scaling February 1995 The Journal of the Acoustical Society of America 97(1):553-62 Consonantal categori-cal perception directly occurs during babbling while the vocalic perceptual magnet effect occurs later on during language specific imitation training.

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It is argued that Òperceptual magnet effectsÓ (the warping of the perceptual space by prototypical exemplars of a category) can be extended to the perception of pairs of The ratio peak at Stimulus 8 for the 60-mel intervals is reliable (i.e., fixed and roving discriminations are significantly different) and indicates the existence of a perceptual anchor effect at that location. - "Perceptual magnet and phoneme boundary effects in speech perception: Do they arise from a common mechanism?" The results demonstrate that the / i / /e / identification boundary was located near Stimulus 10 and that the best exemplar of the / i / category was located near Stimulus 2. None was a good exemplar of the /e / category. - "Perceptual magnet and phoneme boundary effects in speech perception: Do they arise from a common mechanism?" native language magnet theory expanded (NLM-e). In Philosophical Transactions of The Royal Society Biological Sciences, 363(1493), pp. 979-1000.

A temporally dynamic context effect that disrupts voice onset time discrimination of rapidly successive stimuli. Human adults and human infants show a “perceptual magnet effect” for the Human adults and human infants show a “perceptual magnet effect” for the prototypes of speech …

Perceptual load has mostly been used in research on distraction within the visual magnetic resonance imaging) to register the neural activity in response to Experimental Psychology: Human Perception and Performance, 21, 54-67. On the perceptual role of dynamic features in the speech signalInteraction between LybergSpeech perception in noise and the evaluation of language pulses in order totake account of prosodic effects on articulatory gestures and copes with We areusing an Electro-Magnetic MidsagittalArticulometer (EMMA) to track  Mars has an invisible magnetic “tail” that is twisted by interaction with the solar wind, according to new The McGurk effect is a perceptual phenomenon that demonstrates an interaction between hearing and vision in speech perception. av M Uggen · 2006 — Tolkning.

on (a) the theoretical connection between speech perception and language Human adults and human infants show a “perceptual magnet effect” for the proto- .

The perceptual magnet effect involves reduced discriminability of speech sounds near phonetic category prototypes. For several reasons, speech sounds, particularly vowels, provide an excellent starting point for A class of selective attention models often applied to speech perception is used to study effects of training on the perception of an unfamiliar phonetic contrast. Attention-to-dimension (A2D) models of perceptual learning assume that the dimensions that structure listeners ’ perceptual space are co" Previous research has demonstrated an apparent warping of the perceptual space whereby the best exemplars or ‘prototypes’ of speech sound categories minimize the perceptual distance between themselves and neighboring stimuli in the same category. This phenomenon has been termed the ‘perceptual magnet effect’ (PME). perception across category boundaries have failed to definitively resolve. This paper takes the alternative approach of looking for evidence of structure within a postulated category by testing for a Perceptual Magnet Effect (PME). PME has been found in boundary tones but has not previously The perceptual magnet effect is one of the earliest known language-specific phenomena arising in infant speech development.

vowels, ones spoken by men, women, and children (Kuhl, 1979; KuhI, 1985a, for review). The question of whether sensitivity peaks at vowel boundaries (i.e., phoneme boundary effects) and sensitivity minima near excellent category exemplars (i.e., perceptual magnet effects) stem from the same stage of perceptual processing was examined in two experiments. In Experiment 1, participants g … PERCEPTUAL MAGNET EFFECT 875 arise because of experience-related distortions in auditory processing (Guenther & Gjaja, 1996) or because of cate-gorization processes based on multiple stored exemplars (Lacerda, 1995).
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A basic assumption of the NLM. We are refer- ring to the perceptual magnet effect as it is established in Kuhlís ( 1991) Native Language. Magnet Theory of Speech Perception. This effect seems   'perceptual magnet effect' [Kuhl, 1991]: a perceptual distortion around a phonetic prototype. The Native Language Magnet. Model maintains that exposure to a  Speech Perception and Linguistic Experi- ence: Issues in Cross-Language language speech perception research.

41–58). time-locked to perceptual event boundaries. The effects of imagery instructions on totally from functional magnetic resonance imaging.
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On prototype and phonetic categories: A critical assessment of the perceptual magnet effect in speech perception. Journal of Experimental Psychology: Human Perception and Performance, 23, 1665–1679.

PK Kuhl. Perception & psychophysics 50 (2), 93-107 , 1991.