Bistability and biasing effects in the perception of ambiguous point-light walkers

The perceptually bistable character of point-light walkers has been examined in three experiments. A point-light figure without explicit depth cues constitutes a perfectly ambiguous stimulus: from all viewpoints, multiple interpretations are possible concerning the depth orientation of the figure. In the first experiment, it is shown that non-lateral views of the walker are indeed interpreted in two orientations, either as facing towards the viewer or as facing away from the viewer, but that the interpretation in which the walker is oriented towards the viewer is reported more frequently. In the second experiment the point-light figure was walking backwards, making the global orientation of the point-light figure opposite to the direction of global motion. The interpretation in which the walker was facing the viewer was again reported more frequently. The robustness of these findings was examined in the final experiment, in which the effects of disambiguating the stimulus by introducing a local depth cue (occlusion) or a more global depth cue (applying perspective projection) were explored.     

One does not simply track students: the relationship between teachers’ perceived public track regard and their job satisfaction in a context of rigid tracking

Although there is a wealth of research on the educational and broader outcomes of tracking in education, there is virtually no research that investigates teachers’ track identities on such outcomes. Building on research that focuses on the determinants of teachers’ job satisfaction, tracking outcomes and social categorization theory, this study tests the relationship between the perceived public regard of a teachers’ track and their job satisfaction, in a Belgian context of within- (vocational, technical and general education tracks) and between-school tracking (multilateral versus categorical schools). Data of the Belgian SIS (School, Identity and Society)-survey, a large-scale dataset gathered in 2017, containing the self-reports of 324 teachers, clustered in 43 secondary schools is used to test particular hypotheses regarding this relationship. The results of a multilevel analysis show that the relationship between teachers’ public track regard and their job satisfaction varies according to the track they teach and whether they work in a categorical or multilateral school. The findings highlight the importance of carrying out further research on tracked identities in education.