Robert A M Gregson
Biographic Data
| ID | 7117334 |
|---|---|
| NAME | Robert A M Gregson |
| GIVEN NAMES | Robert A M |
| FAMILY NAME | Gregson |
| SIGNATURE | GREGSON R A M |
| AFFILIATIONS | University of Canterbury |
| VERIFIED | No |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 1 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1964 |
| LATEST PUBLICATION YEAR | 1999 |
| H-INDEX | 1 |
Modelling the Internal Generation of Rhythm as an Extension of Nonlinear Psychophysics
Mathematical models within nonlinear psychophysics (NPD) are applied here to the internal production of rhythms. Previously, the behaviour of convoluted cubic polynomial trajectories, after a brief period of initialization, has been explored and their local patterns encoded in symbolic form. The generation of rhythmic, short melodic and some harmonic sequences can arise spontaneously in the dynamics of those trajectories. Edge-of-chaos regimes ca…
Self-Reported Alcohol Consumption; A Real Psychophysical Problem
There are good practical reasons for wanting to know how much alcohol people consume, at what rate, and in what patterns over time. Various measures of consumption and their associated frequency distributions are described. Self-report data on alcohol consumption present problems of interpretation. A detailed rationale for the use of the self-report method by Gregson and Stacey (1980) is presented. Measurement problems arising with the method, em…
Distribution of Self-Reported Alcohol Consumption in New Zealand, 1978–1979
The problem of estimating how much alcohol individuals actually drink is discussed with particular reference to the log-normal frequency distribution of alcohol consumption. It is then presented as being a problem of inference from the recent history of a time series. Following directly from this presentation, data obtained in a national survey of 10,000 New Zealand residents are analyzed (a) to yield the frequency distribution of estimated drink…
Sourness and Bitterness
Confusions between bitterness and acidity in the perception of three taste stimuli ‐ quinine sulphate, citric acid and disodium‐5î‐guanylate ‐ were examined over the near‐threshold range in 45 subjects, using an extended ascending series procedure and intensity ratio estimations. Individual differences, and the effects of reference information, were marked. The results are interpreted in terms of a cosine model of qualitative confusions
Some Properties of Quadratic Similarity Judgements Between Four‐dimensional Stimuli
A model for quadratic similarity judgements developed previously (Gregson, 1969, 1970) is extended to deal with a form of bias, and to assess the information taken up by the parameters in the model. It is shown that judgements collapse, in terms of the model, into near randomness under restricted information conditions, but that this collapse is generally explicable in form, although it exhibits marked inter‐individual differences. Implications f…
Qualitative Gustatory Characteristics of Disodium‐5′‐guanylate
Descriptions of the taste qualities of a nucleotide, disodium‐5′‐guanylate, are reported under two different response sets, lenient and stringent. Control comparison stimuli were de‐ionized water and weak sodium chloride, and near threshold taste concentrations were used. Twenty subjects, 10 under each response set, participated. D5′G has a complex taste, and induces a marked false positive detection response pattern which resembles its own taste…
A note on a seventeenth-century distinction between feral man and man-like apes
A critical examination of a passage from a text by Athanasius Kircher in 1667 indicates that a distinction between feral man and man-like apes had been made on lines compatible with contemporary views almost a century before Linnaeus produced a classification which led to many years of controversy.
A Comparison of Two Models Representing Taste Mixture Similarities in a Cross-Modal Matching Task
Comparisons between two alternative psychophysical models of taste mixture similarity perception are made, using data from a cross-modal matching task where taste mixtures were compared serially with histogram picture representations of other taste mixtures. The problems of generalizing results are indicated
Determination of a Gustatory L70 Point for Sodium Benzoate
Determinations of an L70 point for sodium benzoate taste detection are reported for three different psychophysical methods: Wetherill's UDTR method with single stimuli; the UDTR method modified to incorporate relative judgements at each trial; and the ascending series modification of the method of limits as commonly used in gustatory psychophysics. The high false positive rate for water stimuli interposed with sodium benzoate samples was confirme…
Aspects of the Theoretical Status of Aesthetic Response Typologies
Aesthetic response typologies are criticised for their imprecision and lack of theoretical parsimony. An alternative approach which subsumes reported characteristics of aesthetic choices under one model, related to stochastic learning theory, is advanced
Sourness and Bitterness
Confusions between bitterness and acidity in the perception of three taste stimuli ‐ quinine sulphate, citric acid and disodium‐5î‐guanylate ‐ were examined over the near‐threshold range in 45 subjects, using an extended ascending series procedure and intensity ratio estimations. Individual differences, and the effects of reference information, were marked. The results are interpreted in terms of a cosine model of qualitative confusions
Aspects of the Theoretical Status of Aesthetic Response Typologies
Aesthetic response typologies are criticised for their imprecision and lack of theoretical parsimony. An alternative approach which subsumes reported characteristics of aesthetic choices under one model, related to stochastic learning theory, is advanced
A Comparison of Two Models Representing Taste Mixture Similarities in a Cross-Modal Matching Task
Comparisons between two alternative psychophysical models of taste mixture similarity perception are made, using data from a cross-modal matching task where taste mixtures were compared serially with histogram picture representations of other taste mixtures. The problems of generalizing results are indicated
Determination of a Gustatory L70 Point for Sodium Benzoate
Determinations of an L70 point for sodium benzoate taste detection are reported for three different psychophysical methods: Wetherill's UDTR method with single stimuli; the UDTR method modified to incorporate relative judgements at each trial; and the ascending series modification of the method of limits as commonly used in gustatory psychophysics. The high false positive rate for water stimuli interposed with sodium benzoate samples was confirme…
A note on a seventeenth-century distinction between feral man and man-like apes
A critical examination of a passage from a text by Athanasius Kircher in 1667 indicates that a distinction between feral man and man-like apes had been made on lines compatible with contemporary views almost a century before Linnaeus produced a classification which led to many years of controversy.
Qualitative Gustatory Characteristics of Disodium‐5′‐guanylate
Descriptions of the taste qualities of a nucleotide, disodium‐5′‐guanylate, are reported under two different response sets, lenient and stringent. Control comparison stimuli were de‐ionized water and weak sodium chloride, and near threshold taste concentrations were used. Twenty subjects, 10 under each response set, participated. D5′G has a complex taste, and induces a marked false positive detection response pattern which resembles its own taste…
Some Properties of Quadratic Similarity Judgements Between Four‐dimensional Stimuli
A model for quadratic similarity judgements developed previously (Gregson, 1969, 1970) is extended to deal with a form of bias, and to assess the information taken up by the parameters in the model. It is shown that judgements collapse, in terms of the model, into near randomness under restricted information conditions, but that this collapse is generally explicable in form, although it exhibits marked inter‐individual differences. Implications f…
Sourness and Bitterness
Confusions between bitterness and acidity in the perception of three taste stimuli ‐ quinine sulphate, citric acid and disodium‐5î‐guanylate ‐ were examined over the near‐threshold range in 45 subjects, using an extended ascending series procedure and intensity ratio estimations. Individual differences, and the effects of reference information, were marked. The results are interpreted in terms of a cosine model of qualitative confusions
Distribution of Self-Reported Alcohol Consumption in New Zealand, 1978–1979
The problem of estimating how much alcohol individuals actually drink is discussed with particular reference to the log-normal frequency distribution of alcohol consumption. It is then presented as being a problem of inference from the recent history of a time series. Following directly from this presentation, data obtained in a national survey of 10,000 New Zealand residents are analyzed (a) to yield the frequency distribution of estimated drink…
Self-Reported Alcohol Consumption; A Real Psychophysical Problem
There are good practical reasons for wanting to know how much alcohol people consume, at what rate, and in what patterns over time. Various measures of consumption and their associated frequency distributions are described. Self-report data on alcohol consumption present problems of interpretation. A detailed rationale for the use of the self-report method by Gregson and Stacey (1980) is presented. Measurement problems arising with the method, em…
Modelling the Internal Generation of Rhythm as an Extension of Nonlinear Psychophysics
Mathematical models within nonlinear psychophysics (NPD) are applied here to the internal production of rhythms. Previously, the behaviour of convoluted cubic polynomial trajectories, after a brief period of initialization, has been explored and their local patterns encoded in symbolic form. The generation of rhythmic, short melodic and some harmonic sequences can arise spontaneously in the dynamics of those trajectories. Edge-of-chaos regimes ca…
Psychology (8 works) · Biochemical Analysis and Sensing Techniques (4 works) · Chemistry (4 works) · Computer Science (4 works) · Mathematics (4 works) · Neuroscience (4 works) · Olfactory and Sensory Function Studies (4 works) · Perception (4 works) · Sociology (4 works) · Taste (4 works)