Richard Tees | UBC - Academia.edu (original) (raw)

Papers by Richard Tees

Canadian journal of psychology, Dec 1, 1979

Canadian journal of psychology, Dec 1, 1984

Physiological psychology, Jun 1, 1981

Journal of Comparative and Physiological Psychology, 1968

Behavioural Processes, Sep 1, 1988

ABSTRACT

Journal of the Acoustical Society of America, Jun 1, 1984

Previous research has indicated that young infants can discriminate speech sounds across phonetic... more Previous research has indicated that young infants can discriminate speech sounds across phonetic boundaries regardless of specific relevant experience, and that there is a modification in this ability during ontogeny such that adults often have difficulty discriminating phonetic contrasts which are not used contrastively in their native language. This pattern of findings has often been interpreted as suggesting that humans are endowed with innate auditory sensitivities which enable them to discriminate speech sounds according to universal phonetic boundaries and that there is a decline or loss in this ability after being exposed to a language which contrasts only a subset of those distinctions. The present experiments were designed to determine whether this modification represents a loss of sensorineural response capabilities or whether it shows a shift in attentional focus and/or processing strategies. In experiment 1, adult English-speaking subjects were tested on their ability to discriminate two non-English speech contrasts in a category-change discrimination task after first being predisposed to adopt one of four perceptual sets. In experiments 2, 3, and 4 subjects were tested in an AX (same/different) procedure, and the effects of both limited training and duration of the interstimulus interval were assessed. Results suggest that the previously observed ontogenetic modification in the perception of non-native phonetic contrasts involves a change in processing strategies rather than a sensorineural loss. Adult listeners can discriminate sounds across non-native phonetic categories in some testing conditions, but are not able to use that ability in testing conditions which have demands similar to those required in natural language processing.

Journal of Comparative and Physiological Psychology, 1971

Experimental Brain Research, Feb 1, 1981

Canadian Psychology, Feb 1, 2003

Annual Review of Neuroscience, Mar 1, 1992

... Speech, in particular consonant vowel (CV) syllables, however, constitutes the only kind of .... more ... Speech, in particular consonant vowel (CV) syllables, however, constitutes the only kind of ... evoked responses, carotid sodium amy tal injection, cortical stimulation, and dichotic listen ing ... Both labeling and discrimination tests involving synthetic series of calls relevant to mice ...

Canadian journal of psychology, Jun 1, 1983

Canadian journal of psychology, Mar 1, 1987

Elsevier eBooks, 1986

Publisher Summary This chapter discusses investigations relating to the role played by experience... more Publisher Summary This chapter discusses investigations relating to the role played by experience in the development of specific and representative visual functions in mammals and emphasizes on the experiential contributions as the studies reviewed usually involve manipulations of environmental, not of genetic, variables. It also presents relationship between physiological and behavioral effects. One of the recent trends in analysis of the function of the visual system has been the partial dissociation of those neural mechanisms underlying visual information processing, perception or discrimination, and those underlying visually elicited orientation or locomotion, the geniculocortical pathway being identified with perception, and the retinotectal pathway with orientation. Normal adult vision involves both orientation and perception simultaneously or in close interaction. The capacity to orient to parts of the environment may have its own developmental history, which intuitively might precede the development of certain perceptual abilities. It is the presence of this orienting behavior to stimulus change that can lead directly to the acquisition of the representative processes that function in perceiving, normal, adult organism. However, ideally, orienting behavior itself should be analyzed as a complex response with a number of component elements, each of which might have its own developmental history and be affected by lack of visual experience or lesion differentially.