2005
DOI: 10.2114/jpa.24.201
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Relationship between Cerebral Activity and Movement Frequency of Maximal Finger Tapping

Abstract: To examine the cerebral activity of the motor cortex during maximum movement, we measured regional cerebral blood flow (rCBF) in twelve normal volunteers, using near infrared spectroscopy (NIRS). Repetitive tapping of the right index finger was performed at 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 4.5 Hz, and during maximum effort (ME). The relative increase rate of rCBF during movement beginning with a resting condition was calculated for each movement condition. The left primary sensorimotor cortex showed sign… Show more

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Cited by 33 publications
(24 citation statements)
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“…Participants were asked to be consistent during the task while keeping the rest of their body still. As validated before, no significant differences in oxygenation changes occur between 1 and 4.5 Hz, 11 in the current paradigm, the frequency of grasping or tapping was regulated by the participants and at a speed with which they felt comfortable, as is usually the case in a clinical setting.…”
Section: Experimental Protocolmentioning
confidence: 55%
“…Participants were asked to be consistent during the task while keeping the rest of their body still. As validated before, no significant differences in oxygenation changes occur between 1 and 4.5 Hz, 11 in the current paradigm, the frequency of grasping or tapping was regulated by the participants and at a speed with which they felt comfortable, as is usually the case in a clinical setting.…”
Section: Experimental Protocolmentioning
confidence: 55%
“…There is evidence to suggest that the haemodynamic response can be modulated by the frequency (Kuboyama et al, 2004(Kuboyama et al, , 2005Obrig et al, 1996a), intensity (Shibusawa et al, 2009;Shibuya et al, 2008) and complexity (Holper et al, 2009) of the motor task or stimulus.…”
Section: Correlation Between Fnirs Data and Other Functional Neuroimamentioning
confidence: 99%
“…Nature/length of stimulus or trial (s) Time to peak (TPP)/time to nadir (TTN) for cortical haemoglobin species (s) HbO 2 HHb HbT Huppert et al (2006) Finger tapping/2 s (a)* 4.6 ± 1.7 6.0 ± 1.2 4.5 ± 1.7 Huppert et al (2006) Finger tapping/2 s (b)* 4.0 ± 1.4 6.0 ± 1.0 3.9 ± 1.5 Hirth et al (1997) Finger tapping/60 s 9.6 ± 2.0 13.1 ± -Obrig et al (2000) Finger opposition/10 s 5 5 - Colier et al (1997) Finger opposition/20 s 6 6 - Franceschini et al (2003) Finger opposition/20 s 6.0 ± 0.5 5.0 ± 0.6 5.0 ± 0.6 Maki et al (1996) Finger opposition/30 s 5-10 -- Watanabe et al (1996) Finger to thumb opposition/30 s -- activation as detected by fNIRS is not necessarily linear or exponential (Kuboyama et al, 2005).…”
Section: Referencementioning
confidence: 99%
“…The measurement part was set in the probe arrangement of Fig. 3 based on the 10/20 method [6]. Near-infrared ray light is irradiated to the head skin from incident probes, and the light that passes through the brain cortex is detected by detector probes.…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, first, we examine the estimation of start and end timing of tapping movement by using NIRS signal. By measuring Hb signals during the movement, the increase of Oxy-and totalHb and the decrease of deOxy-Hb around the motor cortex have been reported [4][5][6]. While a subject performs tapping movement, Hb signals depend more on muscle activity than movement frequency, and the largest activation was found by maximum tapping effort [6].…”
Section: Introduction Kmentioning
confidence: 99%