To see or not to see: The need for attention to perceive changes in scenes
Article Abstract:
It is proposed that the visual perception of a change in a scene happens only when focused attention is given to the part of the scene being changed. Induced change blindness has been encountered in different experimental paradigms. A flicker paradigm has been developed to assess whether the two different types of change blindness, concerned with visual memory, and with saccade-contingent changes, could be due to the same attentional mechanism. The results show that observers never see a complete representation of their surroundings and that attention is required to perceive change.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Reflexive attention modulates processing of visual stimuli in human extrastriate cortex
Article Abstract:
The effects of reflexive attention on visual processing were investigated by measuring neural activity using the event-related potential technique. Participants were asked to view a color computer monitor and maintain fixation on a centrally located cross throughout the experiments. Results showed that reflexively oriented attention modulates the processing of visual stimuli in extrastriate cortex in the earlier stages of sensory analysis. Furthermore, visual processing is enhanced during the later stages of sensory analysis.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Chronometric evidence for two types of attention
Article Abstract:
Input attention and central attention operate at different levels of cognitive processing. Chronometric analyses bear out this conclusion, as it reveals that the same reference stage of letter identification operates following the stage at which input attention operates but before the stage at which central attention operates. These findings affirm the existence of distinct attentional processes.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Do children need concurrent prompts in order to use lexical analogies in reading?
- Abstracts: Response to 'A home-based program for the treatment of acute psychosis'. Response to "The role of self-help programs in the rehabilitation of persons with severe mental illness and substance use disorders." (article of Douglas L. Noordsy et al in this issue, p. 71)(Special Section: Community Psychiatric Practice)
- Abstracts: A partial test of the psychosomatic family model: marital interaction patterns in asthma and nonasthma families
- Abstracts: Off-road religion? A narrative approach to fundamentalist and occult orientations of adolescents. Effects of religiosity and racial socialization on subjective stigmatization in African-American adolescents
- Abstracts: Generating novel ideas: Fluency performance in high-functioning and learning disable individuals with autism. Theory of mind and rule use in individuals with Down's syndrome: a test of the uniqueness and specificity claims