Tritan discriminations by 1- and 2-month-old human infants

Varner, Denise C.; Cook, James E.; Schneck, Marilyn E.; McDonald, Mary Alice; Teller, Davida Y.

doi:10.1016/0042-6989(85)90190-7

Cited by 45 publications

(13 citation statements)

References 24 publications

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“…Behaviorally, 2-month-old infants can discriminate blue–yellow stimuli, while discrimination of other colors is not yet possible (Teller et al, 1978; Varner et al, 1985; Clavadetscher et al, 1988). At 3 months of age, infants are able to discriminate between red and green as well as between blue and yellow colors.…”

Section: Development Of Visual Mechanisms Underlying Form Processingmentioning

confidence: 99%

Keep Your Eyes on Development: The Behavioral and Neurophysiological Development of Visual Mechanisms Underlying Form Processing

Boomen¹,

Smagt²,

Kemner³

2012

Front. Psychiatry

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Visual form perception is essential for correct interpretation of, and interaction with, our environment. Form perception depends on visual acuity and processing of specific form characteristics, such as luminance contrast, spatial frequency, color, orientation, depth, and even motion information. As other cognitive processes, form perception matures with age. This paper aims at providing a concise overview of our current understanding of the typical development, from birth to adulthood, of form-characteristic processing, as measured both behaviorally and neurophysiologically. Two main conclusions can be drawn. First, the current literature conveys that for most reviewed characteristics a developmental pattern is apparent. These trajectories are discussed in relation to the organization of the visual system. The second conclusion is that significant gaps in the literature exist for several age-ranges. To complete our understanding of the typical and, by consequence, atypical development of visual mechanisms underlying form processing, future research should uncover these missing segments.

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Section: Development Of Visual Mechanisms Underlying Form Processingmentioning

confidence: 99%

Keep Your Eyes on Development: The Behavioral and Neurophysiological Development of Visual Mechanisms Underlying Form Processing

Boomen¹,

Smagt²,

Kemner³

2012

Front. Psychiatry

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“…In early studies from our laboratory (Peeples & Teller, 1975;Teller, Peeples & Sekel, 1978;Hamer, Alexander, & Teller, 1982;Packer, Hartmann, & Teller, 1984;Varner, Cook, Schneck, McDonald, & Teller, 1985), infant performance minima were conceptualized in terms of brightness matches. In consequence, the luminances at infant performance minima were compared only to adult brightness matches measured in situ, and no detailed spectral calibrations were made.…”

Section: Evidence From the Infant Color Vision Literaturementioning

confidence: 99%

Adult brightness vs. luminance as models of infant photometry: Variability, biasability, and spectral characteristics for the two age groups favor the luminance model

Teller¹,

Pereverzeva²,

Civan³

2003

Journal of Vision

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When infants fail to make chromatic discriminations, do the characteristics of their performance minima coincide more closely with the properties of adult luminance matches or heterochromatic brightness matches? In addition to their spectral properties, adult luminance matches are typically characterized by relatively small individual differences, whereas brightness matches are believed to be both more variable and more biasable. Two complementary experiments were carried out on adults and 8-week-old infant subjects. Both groups were tested with small (1.5 degrees to 4 degrees ) red and blue test fields of varying luminances, embedded in a white surround. In adults, heterochromatic brightness matches were measured. Individual differences spanned about 0.5 log units, and brightness matches could be biased by as much as 0.8 log units by varying the range of test field luminances. In infants, the locations of performance minima were measured. Individual differences spanned less than 0.1 log units, the mean performance minima coincided with predictions based on V10(lambda), and the location of the performance minimum was nearly unaffected by the range of test field luminances used. Thus by all three criteria, these data suggest that infants' performance minima are mediated by luminance rather than by brightness signals. To date there remains no evidence that the infant visual system computes a brightness signal.

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“…Infants' tritan channel (S cone pathway) has been investigated in many studies, but it is not yet well understood when infants can distinguish tritan stimuli (e.g. FPL : Teller, Peeples, & Sekel, 1978;Pulos, Teller, & Buck, 1980;Varner, Cook, Schneck, McDonald, & Teller, 1985). Recently, Suttle, Banks, and Graf (2002) examined when infants could distinguish tritan stimuli by using the FPL technique.…”

Section: Introductionmentioning

confidence: 99%

Development of chromatic induction in infancy

Okamura

Kanazawa

Yamaguchi

2007

Infant and Child Development

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The perception of colour in an embedded field is affected by the surround colour. This phenomenon is known as chromatic induction. In the present study we investigated whether the colour perception by infants aged 5-7 months could be affected by the surround colour. In Experiments 1 and 2 each stimulus was composed of an array of six squares in tandem. The colour appearance of the array in the familiarization stimulus was established by chromatic induction. In Experiment 1 we used familiarization stimuli that were perceived as two-colour array with a two-colour surround. In Experiment 2 we used a familiarization stimulus that was perceived as a uniform-colour array with a two-colour surround. In the test phase, the uniformcolour array and the two-colour array were presented on a white uniform-colour surround in both experiments. The results showed that in Experiment 1 the 5-and 7-month-old infants had novelty preference for the uniform-colour test array. This suggested that the infants' colour perception could be affected by surround colour. The results of Experiment 2 showed that the 7month-olds showed a novelty preference for the two-colour test array, but the 5-month-olds showed no novelty preference. This suggested that 7-month-olds' colour perception could be affected by surround colour, but that of 5-month-olds could not. We discuss the contradiction of the results between Experiments 1 and 2.

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Tritan discriminations by 1- and 2-month-old human infants

Cited by 45 publications

References 24 publications

Keep Your Eyes on Development: The Behavioral and Neurophysiological Development of Visual Mechanisms Underlying Form Processing

Keep Your Eyes on Development: The Behavioral and Neurophysiological Development of Visual Mechanisms Underlying Form Processing

Adult brightness vs. luminance as models of infant photometry: Variability, biasability, and spectral characteristics for the two age groups favor the luminance model

Development of chromatic induction in infancy

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