Locus of response slowing resulting from alternation-based processing interference

C Dudschig, Ines Jentzsch

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

In serial reaction time (RT) tasks, performance is strongly influenced by previous events. RT in Trial N is much slower after response changes than response repetitions from Trial N-2 to Trial N-1 when response-stimulus interval is short (I. Jentzsch & H. Leuthold, 2005). The aim of the present study was to investigate the mechanisms leading to this slowing by contrasting the idea of a hard bottleneck, postponing all subsequent processing, with a selective prolonging of postperceptual stages. We analyzed the lateralized readiness potential (LRP) and peak latencies of P1, N1, and P300 components in a choice RT task mapping four stimuli to two responses. Alternation-based interference affected the S-LRP interval but neither the LRP-R interval nor the latency of P1, N1, and P300. These findings suggest that, whereas alternation-based conflict originates at response-related stages, postconflict slowing selectively affects central, premotoric processing.

Original languageEnglish
Pages (from-to)751-758
Number of pages8
JournalPsychophysiology
Volume45
Issue number5
DOIs
Publication statusPublished - Sept 2008

Keywords

  • response conflict
  • cognitive control
  • LRP
  • sequential effects
  • response alternation
  • control adjustments
  • CHOICE-REACTION-TIME
  • LRP ONSET
  • LATENCY DIFFERENCES
  • INFORMATION
  • TASKS
  • POTENTIALS
  • EXPECTANCY
  • ACTIVATION
  • RT

Fingerprint

Dive into the research topics of 'Locus of response slowing resulting from alternation-based processing interference'. Together they form a unique fingerprint.

Cite this