Skip to main content
Article thumbnail
Location of Repository

Event-related potential correlates of spatiotemporal regularities in vision

By Petra Pollux and Kun Guo

Abstract

Spatiotemporal regularities in stimulus structure have been shown to influence visual target detection and discrimination. Here we investigate whether the influence of spatiotemporal regularity is associated with the modulation of early components (P1/N1) in Event-Related Potentials (ERP). Stimuli consisted of five horizontal bars (predictors) appearing successively towards the fovea followed by a target bar at fixation, and participants performed a key-press on target detection. Results showed that compared to the condition where five predictors were presented in a temporally regular but spatially randomised order, target detection-times were faster and contralateral N1 peak latencies were shorter when the predictors and the target were presented with spatial and temporal regularity. Both measures were most prolonged when only the target was presented. In this latter condition, an additional latency prolongation was observed for the P1 peak compared to the conditions where the target was preceded by the predictors. The latency shifts associated with early ERP components provides additional support for involvement of early visual processing stages in the coding of spatiotemporal regularities in humans

Topics: C800 Psychology, C850 Cognitive Psychology
Publisher: Lippincott, Williams & Wilkins
Year: 2009
DOI identifier: 10.1097/WNR.0b013e32832770a5
OAI identifier: oai:eprints.lincoln.ac.uk:3366

Suggested articles

Citations

  1. (2005). An introduction to the event-related potential technique.
  2. (2005). Centre-surround interactions in response to natural scene stimulation in the primary visual cortex. doi
  3. (2002). Contextual influences on visual processing. Annual Review of Neuroscience
  4. (1995). Contrast dependence of motion-onset and pattern-reversal evoked potentials. Vision research doi
  5. (2001). Effect of aging on visuospatial attention: an ERP study. Neuropsychologia doi
  6. (2004). Effects on orientation perception of manipulating the spatiotemporal prior probability of stimuli. Vision Research doi
  7. (1983). Event-related potential correlates of two stages of information processing in physical and semantic discrimination tasks. Psychophysiology doi
  8. (1996). Functional integration and inference in the brain. doi
  9. (1995). Identification of early visual evoked potential generators by retinotopic and topographic analyses. Human Brain Mapping doi
  10. (2002). Localizing visual discrimination processes in time and space.
  11. (1995). Luminance and spatial attention effects on early visual processing. doi
  12. (2002). Non-spatial attentional effects on P1. Clinicial Neurophysiology doi
  13. (1996). Perception as bayesian inference. doi
  14. (2004). Preparing for Action: Inferences from CNV and LRP. doi
  15. (1998). Sensory gain control as a mechanism of selective attention. Electrophysiological and neuroimaging evidence. doi
  16. (1988). Spatial gradient of visual attention: behavioral and electrophysiological evidence. Electroencephalography and Clinical Neurophysiology doi
  17. (2007). Spatio-temporal prediction and inference by V1 neurons. doi
  18. (2002). Surround suppression in the human visual cortex: an analysis using magnetoencephalography. Vision Research doi
  19. (2005). Synergistic effect of combined temporal and spatial expectation on visual attention.
  20. (2000). The architecture of visual cortex and inferential processes in vision. Spatial Vision doi
  21. (2003). The effect of stimulus-onset asynchrony on human visual event-related potentials during simple and choice reaction paradigms under constant or random conditions. Neuroscience Letters doi
  22. (2000). The visual N1 component as an index of a discrimination process. Psychophysiology doi
  23. (2007). Top-down predictions in the cognitive brain. Brain and Cognition doi
  24. (2003). V1 Neurons signal acquisition of an internal representation of stimulus location. Science doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.