The effect of attention on perceived brightness and contrast was investigated in eight experiments. Attention was manipulated by engaging observers in an attention-demanding concurrent task or by directing attention to a location with a peripheral cue. In all of the dual-task manipulations, attention reduced the variability of responses. However, attention did not affect the brightness of stimuli, nor did it affect the amount of simultaneous brightness contrast. Results with peripheral location cues were similar; however, the effect of attention in these (...) experiments could be attributed to nonperceptual factors. The metaphorical “spotlight” of attention reduces observers' uncertainty about the brightness of a stimulus, but it does not “illuminate” in terms of brightness or contrast. (shrink)

In this paper I investigate the neurophenomenology of freediving (NoF) and the Skilled Intentionality Framework (SIF), using these two components to mutually inform each other in order to better understand cognition in skilled action. First, this paper provides a novel neurophenomenological exposition of the practice of freediving. It combines quantitative neurophysiological data with qualitative phenomenological reports in order to understand the neural and bodily mechanisms that correlate with the phenomenology of freediving. The NoF data suggests that freediving induces a unique (...) neurophysiological state. This unique neurophysiological state forms the basis for a peculiar and exceptional experiential state, which is phenomenologically characterized by a heightened sense of presence, heightened perception, lack of reflective awareness, lack of anticipation in decision-making, and restricted emotional range. Second, this paper synthesizes the NoF data and the SIF conceptual framework of cognition in skilled action in order to investigate how the two can mutually inform one another. This synthesis provides 1) a unified and cohesive understanding of the NoF data; 2) elucidation and clarification of three key features generalizable to SIF’s _metastable zones_; 3) refinement of the role of _anticipation_ in SIF, with the focus shifting instead towards _task-specific constraint_ of action-readiness; and 4) an investigation of the breath, an understudied dynamical oscillator of brain, body, and behavior, which provides an empirical mechanism to support SIF’s theoretical assumption of the _dynamical self-organization_ required in skilled action. Looking more broadly, this neurophenomenological investigation of freediving elucidates a novel case study which can provide rich perspectives and fertile material for further scientific, phenomenological, theoretical, and philosophical investigations in ecological psychology, expertise, reflection, enactivism, and cognition more generally. (shrink)