Masking effectiveness of disks varying in duration and in number of internal segments

Dember, William N.; Bryant, Brenda K.; Chambers, J. D.

doi:10.3758/bf03337620

Cited by 1 publication

(1 citation statement)

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“…The visibility of the Wrst stimulus (the test stimulus) is then impaired by the second stimulus (the mask). This impairment can be a reduction of the perceived brightness (e.g., Alpern, 1953;Blanc-Garin, 1966;Fry, 1934;Growney, Weisstein, & Cox, 1977;Piéron, 1935), an increased threshold for the test stimulus (e.g., Cox & Dember, 1970;Kolers, 1962;Lefton & Orr, 1975), its reduced discriminability (e.g., Bernstein, Proctor, Proctor, & Schurman, 1973;Breitmeyer, Love, & Wepman, 1974;Weisstein & Haber, 1965) or identiWability (e.g., Dember, Bryant, & Chambers, 1975;McKeever & Suberi, 1974;Mewhort, Hearty, & Powell, 1978;Schurman, 1972) or simply that it has phenomenally disappeared (e.g., Burchard & Lawson, 1973;Kolers & Rosner, 1960;Mayzner, Tresselt, & Helfer, 1967;Toch, 1956;Werner, 1935).…”

Section: Introduction (See Endnote 1)mentioning

confidence: 98%

Visual attention and the mechanism of metacontrast

Neumann

Scharlau

2006

Psychological Research

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The U-shaped metacontrast function may result from the superimposition of two monotonic components which reflect the effects of mechanisms similar to the peripheral and central processes suggested for backward pattern masking by Turvey (Psychol Rev 80:1-52, 1973). In an experiment using the disc-ring paradigm, it was demonstrated that the decreasing and increasing branches of the metacontrast function are differently affected by the exposure duration of the mask and a task-irrelevant stimulus (distractor) appearing in the contralateral visual hemifield. The phenomenal representation of masking is different for the two parts of the curve. It is suggested that masking in the second part of the masking function, but not in the first, is related to the control of visual attention.

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