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Item Scientific Standards of Psychological Practice: Issues and Recommendations(Context Press, 1995) Hayes, Steven C.; Follette, Victoria M.; Dawes, Robyn M.; Grady, Kathleen E.Item Relating is an Operant: A Fly Over of 35 Years of RFT Research(Perspectivas em Análise do Comportamento, 2021-04) Hayes, Steven C; Law, Stu; Assemi, Kian; Falletta-Cowden, Neal; Shamblin, Melia; Burleigh, Kenneth; Forman, Michelle; Smith, PatrickRelational Frame Theory (RFT) is the simplest form of operant theory since it claims nothing more than a particular type of behavior, arbitrarily applicable derived relational responding, is an operant. While the theory is simple, its implications are not, and adoption has been slow until recently. RFT was first formally described in 1985 and in the 35 years since, hundreds of studies have been conducted on relational learning from an operant point of view. The present paper briefly summarizes that history and examines some of its key claims. So far, the empirical program delineated by RFT has held up remarkably well. Future directions are delineated that will enable a more comprehensive evaluation of the importance of the RFT research program, and a more thorough exploration of its profound implications.Item The motion-induced contour revisited: Observations on 3-D structure and illusory contour formation in moving stimuli(2019) Erlikhman, Gennady; Fu, Mengzhu; Dodd, Michael D.; Caplovitz, Gideon P.The motion-induced contour (MIC) was first described by Victor Klymenko and Naomi Weisstein in a series of papers in the 1980s. The effect is created by rotating the outline of a tilted cube in depth. When one of the vertical edges is removed, an illusory contour can be seen in its place. In four experiments, we explored which stimulus features influence perceived illusory contour strength. Participants provided subjective ratings of illusory contour strength as a function of orientation of the stimulus, separation between inducing edges, and the length of inducing edges. We found that the angle of tilt of the object in depth had the largest impact on perceived illusory contour strength with tilt angles of 20 degrees and 30 degrees producing the strongest percepts. Tilt angle is an unexplored feature of structure-from-motion displays. In addition, we found that once the depth structure of the object was extracted, other features of the display, such as the distance spanned by the illusory contour, could also influence its strength, similar to the notion of support ratio for 2-D illusory contours. Illusory contour strength was better predicted by the length of the contour in 3-D rather than in 2-D, suggesting that MICs are constructed by a 3-D process that takes as input initially recovered contour orientation and position information in depth and only then forms interpolations between them.Item From Flashes to Edges to Objects: Recovery of Local Edge Fragments Initiates Spatiotemporal Boundary Formation(2016) Erlikhman, Gennady; Kellman, Philip J.Spatiotemporal boundary formation (SBF) is the perception of illusory boundaries, global form, and global motion from spatially and temporally sparse transformations of texture elements (Shipley and Kellman, 1 993a, 1994Item Early Blindness Results in Developmental Plasticity for Auditory Motion Processing within Auditory and Occipital Cortex(2016) Jiang, Fang; Stecker, G. Christopher; Boynton, Geoffrey M.; Fine, IoneEarly blind subjects exhibit superior abilities for processing auditory motion, which are accompanied by enhanced BOLD responses to auditory motion within hMT+ and reduced responses within right planum temporale (rPT). Here, by comparing BOLD responses to auditory motion in hMT+ and rPT within sighted controls, early blind, late blind, and sight-recovery individuals, we were able to separately examine the effects of developmental and adult visual deprivation on cortical plasticity within these two areas. We find that both the enhanced auditory motion responses in hMT+ and the reduced functionality in rPT are driven by the absence of visual experience early in life