A study of attentional resource of discrete and gradational allocation strategy using error-related negativity (ERN)

Hideaki Tanaka, Yoshiko Mochizuki, Hiroaki Masaki, Noriyoshi Takasawa, Katsuo Yamazaki

Research output: Contribution to journalArticle

2 Citations (Scopus)


The error-related negativity (ERN) is a component of the event-related brain potential (ERP) that is associated with action monitoring and error detection. The ERN amplitude reflects attentional resource allocated to error detection. The present study examined whether discrete or gradational allocation strategy of attentional resource in error detection using the ERN amplitude. Only Eriksen flanker task was used in the single task condition. Eriksen flanker task was used as a primary task and Sternberg memory search task was used as a secondary task in the dual task conditions. The task difficulty of the secondary task manipulated in the present study included the memory load. Memory set sizes of 2, 4 and 6 were used in the Sternberg memory search task (M2, M4 and M6 conditions). The results indicated that reaction time was gradually delayed in the primary task as the task difficulty of the secondary task gradually increased. However the ERN amplitude of the primary task decreased in M6 condition alone. In conclusion, discrete allocation strategy of attentional resource was adopted in the error detection.

Original languageEnglish
Pages (from-to)43-50
Number of pages8
JournalShinrigaku Kenkyu
Issue number1
Publication statusPublished - 2005 Apr



  • Attentional resource
  • Discrete allocation strategy
  • Error detection
  • Error-related negativity
  • Gradational allocation strategy

ASJC Scopus subject areas

  • Psychology(all)

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