Abstract
The present study aimed at examining the effects of a) stimulus structure, emotional content and presentation mode in eliciting visual-field advantage, and b) priming in eliciting visual-field advantage. Dependent variables in the experiment were recognition accuracy and response latency. Split visual-field paradigm was taken into account. Results using multivariate ANOVA suggested that recognition accuracy of emotional word with exogenous priming was significantly better than that of endogenous priming. Stimuli were significantly better recognized in left visual-field than in right visual-field. Unilaterally, rather than bilaterally, presented stimuli were significantly better recognized. Emotional content were intensely recognized than neutral content.
Highlights
An earlier study by the authors (Basu and Mandal, 2004) examined visual-field advantage as a function of stimulus structure and stimulus content and presentation mode
It was found that words were significantly better recognized than faces in right visual-field (RVF) [a function of the left hemisphere], whereas the difference was nonsignificant in left visual-field (LVF) [a function of the right hemisphere]
Though the study substantiated the general observation that lexical stimuli are better processed in the RVF than in the LVF while emotional stimuli are better processed in the LVF than in the RVF, it was unclear as to how our perceptual field is organized with respect to both affective content and visual structure
Summary
An earlier study by the authors (Basu and Mandal, 2004) examined visual-field advantage as a function of stimulus structure and stimulus content and presentation mode. Though the study substantiated the general observation that lexical stimuli are better processed in the RVF than in the LVF while emotional stimuli are better processed in the LVF than in the RVF (see Leventhal and Tomarken, 1986), it was unclear as to how our perceptual field is organized with respect to both affective content (emotional vs neutral) and visual structure (words vs faces). Priming helps in organizing our perceptual field and provides an orientation to perceptual scanning. In other words, it helps in designing the perceptual field of the viewer (Rapp, 2001). Priming at the target stimulus is designated as endogenous, while priming at the central fixation point is designated as exogenous (Rapp, 2001)
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