Resource allocation and somatosensory P300 amplitude during dual task: Effects of tracking speed and predictability of tracking direction

Tetsuo Kida, Yoshiaki Nishihira, Arihiro Hatta, Toshiaki Wasaka, Toshiki Tazoe, Yukie Sakajiri, Hiroki Nakata, Takeshi Kaneda, Kazuo Kuroiwa, Sachiyo Akiyama, Masanori Sakamoto, Keita Kamijo, Takuroh Higashiura

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Objective: The amount of attentional resources allocated to a task is determined by the intrinsic demands, also denoted as task load or difficulty of the task. Effects of resource allocation on the somatosensory N140 and P300 were investigated in an inter-modal situation using a dual-task methodology. Methods: Under a dual-task condition, subjects concurrently performed a visuomotor tracking task and a somatosensory oddball task, while they performed just the oddball task under an oddball-only condition. In the tracking task, the subjects tracked the target line, which was presented on an oscilloscope and automatically moved, with the line which represented their own force generated by grip movement with the left hand. Tracking speed (experiment 1) and tracking predictability (experiment 2) were manipulated to vary task difficulty. N140, P300, and reaction time (RT) in the oddball task and tracking accuracy in the tracking task were measured. Results: The P300 and N140 amplitudes were reduced in the dual-task condition compared to those in the oddball-only condition. The fastest tracking speed produced lower tracking accuracy and later RT. However, the tracking speed did not affect the P300 or N140 amplitudes. In contrast, the P300 amplitude was smaller when the change in tracking direction was unpredictable than when it was predictable, without any differences in tracking accuracy or RT, N140. Conclusions: The differences in behaviors among N140, P300, and RT following manipulation of task difficulty support the multiple-resource hypothesis, which defines functionally separate pools of resources. Significance: The present study may show that the P300 amplitude reflects modality-unspecific resource at more central level, and that the N140 amplitude involves perceptual resource.

Original languageEnglish
Pages (from-to)2616-2628
Number of pages13
JournalClinical Neurophysiology
Volume115
Issue number11
DOIs
Publication statusPublished - 2004 Nov
Externally publishedYes

Fingerprint

Resource Allocation
Reaction Time
Hand Strength
Hand
Direction compound

Keywords

  • Attention
  • Dual task
  • N140
  • P300
  • Resource

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Sensory Systems
  • Physiology (medical)

Cite this

Resource allocation and somatosensory P300 amplitude during dual task : Effects of tracking speed and predictability of tracking direction. / Kida, Tetsuo; Nishihira, Yoshiaki; Hatta, Arihiro; Wasaka, Toshiaki; Tazoe, Toshiki; Sakajiri, Yukie; Nakata, Hiroki; Kaneda, Takeshi; Kuroiwa, Kazuo; Akiyama, Sachiyo; Sakamoto, Masanori; Kamijo, Keita; Higashiura, Takuroh.

In: Clinical Neurophysiology, Vol. 115, No. 11, 11.2004, p. 2616-2628.

Research output: Contribution to journalArticle

Kida, T, Nishihira, Y, Hatta, A, Wasaka, T, Tazoe, T, Sakajiri, Y, Nakata, H, Kaneda, T, Kuroiwa, K, Akiyama, S, Sakamoto, M, Kamijo, K & Higashiura, T 2004, 'Resource allocation and somatosensory P300 amplitude during dual task: Effects of tracking speed and predictability of tracking direction', Clinical Neurophysiology, vol. 115, no. 11, pp. 2616-2628. https://doi.org/10.1016/j.clinph.2004.06.013
Kida, Tetsuo ; Nishihira, Yoshiaki ; Hatta, Arihiro ; Wasaka, Toshiaki ; Tazoe, Toshiki ; Sakajiri, Yukie ; Nakata, Hiroki ; Kaneda, Takeshi ; Kuroiwa, Kazuo ; Akiyama, Sachiyo ; Sakamoto, Masanori ; Kamijo, Keita ; Higashiura, Takuroh. / Resource allocation and somatosensory P300 amplitude during dual task : Effects of tracking speed and predictability of tracking direction. In: Clinical Neurophysiology. 2004 ; Vol. 115, No. 11. pp. 2616-2628.
@article{b36b745e1c8b4f548805d7d1a22bde71,
title = "Resource allocation and somatosensory P300 amplitude during dual task: Effects of tracking speed and predictability of tracking direction",
abstract = "Objective: The amount of attentional resources allocated to a task is determined by the intrinsic demands, also denoted as task load or difficulty of the task. Effects of resource allocation on the somatosensory N140 and P300 were investigated in an inter-modal situation using a dual-task methodology. Methods: Under a dual-task condition, subjects concurrently performed a visuomotor tracking task and a somatosensory oddball task, while they performed just the oddball task under an oddball-only condition. In the tracking task, the subjects tracked the target line, which was presented on an oscilloscope and automatically moved, with the line which represented their own force generated by grip movement with the left hand. Tracking speed (experiment 1) and tracking predictability (experiment 2) were manipulated to vary task difficulty. N140, P300, and reaction time (RT) in the oddball task and tracking accuracy in the tracking task were measured. Results: The P300 and N140 amplitudes were reduced in the dual-task condition compared to those in the oddball-only condition. The fastest tracking speed produced lower tracking accuracy and later RT. However, the tracking speed did not affect the P300 or N140 amplitudes. In contrast, the P300 amplitude was smaller when the change in tracking direction was unpredictable than when it was predictable, without any differences in tracking accuracy or RT, N140. Conclusions: The differences in behaviors among N140, P300, and RT following manipulation of task difficulty support the multiple-resource hypothesis, which defines functionally separate pools of resources. Significance: The present study may show that the P300 amplitude reflects modality-unspecific resource at more central level, and that the N140 amplitude involves perceptual resource.",
keywords = "Attention, Dual task, N140, P300, Resource",
author = "Tetsuo Kida and Yoshiaki Nishihira and Arihiro Hatta and Toshiaki Wasaka and Toshiki Tazoe and Yukie Sakajiri and Hiroki Nakata and Takeshi Kaneda and Kazuo Kuroiwa and Sachiyo Akiyama and Masanori Sakamoto and Keita Kamijo and Takuroh Higashiura",
year = "2004",
month = "11",
doi = "10.1016/j.clinph.2004.06.013",
language = "English",
volume = "115",
pages = "2616--2628",
journal = "Clinical Neurophysiology",
issn = "1388-2457",
publisher = "Elsevier Ireland Ltd",
number = "11",

}

TY - JOUR

T1 - Resource allocation and somatosensory P300 amplitude during dual task

T2 - Effects of tracking speed and predictability of tracking direction

AU - Kida, Tetsuo

AU - Nishihira, Yoshiaki

AU - Hatta, Arihiro

AU - Wasaka, Toshiaki

AU - Tazoe, Toshiki

AU - Sakajiri, Yukie

AU - Nakata, Hiroki

AU - Kaneda, Takeshi

AU - Kuroiwa, Kazuo

AU - Akiyama, Sachiyo

AU - Sakamoto, Masanori

AU - Kamijo, Keita

AU - Higashiura, Takuroh

PY - 2004/11

Y1 - 2004/11

N2 - Objective: The amount of attentional resources allocated to a task is determined by the intrinsic demands, also denoted as task load or difficulty of the task. Effects of resource allocation on the somatosensory N140 and P300 were investigated in an inter-modal situation using a dual-task methodology. Methods: Under a dual-task condition, subjects concurrently performed a visuomotor tracking task and a somatosensory oddball task, while they performed just the oddball task under an oddball-only condition. In the tracking task, the subjects tracked the target line, which was presented on an oscilloscope and automatically moved, with the line which represented their own force generated by grip movement with the left hand. Tracking speed (experiment 1) and tracking predictability (experiment 2) were manipulated to vary task difficulty. N140, P300, and reaction time (RT) in the oddball task and tracking accuracy in the tracking task were measured. Results: The P300 and N140 amplitudes were reduced in the dual-task condition compared to those in the oddball-only condition. The fastest tracking speed produced lower tracking accuracy and later RT. However, the tracking speed did not affect the P300 or N140 amplitudes. In contrast, the P300 amplitude was smaller when the change in tracking direction was unpredictable than when it was predictable, without any differences in tracking accuracy or RT, N140. Conclusions: The differences in behaviors among N140, P300, and RT following manipulation of task difficulty support the multiple-resource hypothesis, which defines functionally separate pools of resources. Significance: The present study may show that the P300 amplitude reflects modality-unspecific resource at more central level, and that the N140 amplitude involves perceptual resource.

AB - Objective: The amount of attentional resources allocated to a task is determined by the intrinsic demands, also denoted as task load or difficulty of the task. Effects of resource allocation on the somatosensory N140 and P300 were investigated in an inter-modal situation using a dual-task methodology. Methods: Under a dual-task condition, subjects concurrently performed a visuomotor tracking task and a somatosensory oddball task, while they performed just the oddball task under an oddball-only condition. In the tracking task, the subjects tracked the target line, which was presented on an oscilloscope and automatically moved, with the line which represented their own force generated by grip movement with the left hand. Tracking speed (experiment 1) and tracking predictability (experiment 2) were manipulated to vary task difficulty. N140, P300, and reaction time (RT) in the oddball task and tracking accuracy in the tracking task were measured. Results: The P300 and N140 amplitudes were reduced in the dual-task condition compared to those in the oddball-only condition. The fastest tracking speed produced lower tracking accuracy and later RT. However, the tracking speed did not affect the P300 or N140 amplitudes. In contrast, the P300 amplitude was smaller when the change in tracking direction was unpredictable than when it was predictable, without any differences in tracking accuracy or RT, N140. Conclusions: The differences in behaviors among N140, P300, and RT following manipulation of task difficulty support the multiple-resource hypothesis, which defines functionally separate pools of resources. Significance: The present study may show that the P300 amplitude reflects modality-unspecific resource at more central level, and that the N140 amplitude involves perceptual resource.

KW - Attention

KW - Dual task

KW - N140

KW - P300

KW - Resource

UR - http://www.scopus.com/inward/record.url?scp=4644258029&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4644258029&partnerID=8YFLogxK

U2 - 10.1016/j.clinph.2004.06.013

DO - 10.1016/j.clinph.2004.06.013

M3 - Article

C2 - 15465451

AN - SCOPUS:4644258029

VL - 115

SP - 2616

EP - 2628

JO - Clinical Neurophysiology

JF - Clinical Neurophysiology

SN - 1388-2457

IS - 11

ER -