Concurrent visual search and time reproduction with cross-talk

Richard Schweickert, Claudette Fortin, Kyongje Sung

Research output: Contribution to journalArticle

Abstract

Previous experiments indicate that humans can reproduce a time interval while concurrently searching a visual display presented near the beginning of the reproduced interval (Fortin, C., Rousseau, R., Bourque, P. & Kirouac, E. (1993). Time estimation and concurrent nontemporal processing: Specific interference from short-term-memory demands. Perception & Psychophysics, 53, 536-548.). In the earlier experiments, reproduced intervals were either insensitive to or shortened with increasing duration of visual search, suggesting that reproduction and search proceeded concurrently but sometimes with cross-talk. Here we test concurrency of time reproduction and visual search using a different methodology than before. Assuming the underlying mental processes are in a critical path network, factors selectively influencing concurrent processes are predicted to produce certain patterns in response time means and, through recent developments, certain patterns in cumulative distribution functions. Processes in an experiment were influenced by manipulating four factors, the time interval to be produced, stimulus onset asynchrony, display size, and target presence/absence. Patterns in response times provide evidence for concurrent time reproduction and visual search. However, a prediction based on selective influence failed in a manner suggesting the presence of cross-talk produced by a filled interval illusion.

Original languageEnglish (US)
Pages (from-to)99-121
Number of pages23
JournalJournal of Mathematical Psychology
Volume51
Issue number2
DOIs
StatePublished - Apr 1 2007

    Fingerprint

Keywords

  • Cross-talk
  • Parallel processing
  • Selective influence
  • Task network
  • Time production
  • Visual search

ASJC Scopus subject areas

  • Psychology(all)
  • Applied Mathematics

Cite this