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Gabbard, Stephen R

2013, Doctor of Philosophy (PhD), Wright State University, Human Factors and Industrial/Organizational Psychology PhD.
Gabbard, Stephen R., Ph.D., Human Factors and
Industrial/Organizational Psychology Ph.D. Program,
Department of Psychology, Wright State University, 2013.
Flash Lag Effect Model Discrimination
The purpose of this study was to test the various models describing the Flash Lag Effect (FLE). Beginning with the initial work of Nijhawan (1994), several models have emerged endeavoring to explain the FLE (e.g., Eagleman & Sejnowski, 2000; Whitney, 2000; Baldo & Caticha, 2005). Two series of studies comprising 11 separate experiments were undertaken to differentiate these models, with a particular focus on the neural network model of Baldo and Caticha (2005). The experiments included the three primary FLE experimental paradigms: continuous motion (CM), flash-initiated (FIC) and flash-terminated (FTC). Ninety-three participants made observations in these three paradigms using a 2-AFC interleaved staircase protocol. ANOVAs were performed on each of the 11 experiments to determine main effects and interactions of the experimental factors, and additionally, overall FLE levels irrespective of factor influences. The combination of results shows that the neural network model (Baldo & Caticha, 2005) holds promise to form the basis for a unifying theory, whereas the postdiction (Eagleman & Sejnowski, 2000) and differential neural latency (Whitney, 2000) models do not. Implications and directions for further study are discussed.
Scott Watamaniuk, Ph.D. (Committee Chair)
Valerie Shalin, Ph.D. (Committee Member)
Alan Nagy, Ph.D. (Committee Member)
Robert Patterson, Ph.D. (Committee Member)
159 p.

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Gabbard, S. (2013). FLASH LAG EFFECT MODEL DISCRIMINATION. (Electronic Thesis or Dissertation). Retrieved from

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Gabbard, Stephen. "FLASH LAG EFFECT MODEL DISCRIMINATION." Electronic Thesis or Dissertation. Wright State University, 2013. OhioLINK Electronic Theses and Dissertations Center. 24 Nov 2017.

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Gabbard, Stephen "FLASH LAG EFFECT MODEL DISCRIMINATION." Electronic Thesis or Dissertation. Wright State University, 2013.