No interference of task complexity with circadian rhythmicity in a constant routine protocol

Eekelen, Alexander P. J. van; Kerkhof, G.A.

doi:10.1080/0014013031000121598

Cited by 22 publications

(20 citation statements)

References 33 publications

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“…Similar results were observed in previous studies with simple tracking tasks measuring visual-motor skills (Buck 1977;Dorrian et al 2000;Mullaney et al 1983;Goh et al 2001;van Eekelen & Kerkhof 2003). It is also possible that the failure to adjust to the changes in the task during the morning hours also affected the efficiency with regard to responding to the 8th-20th stimuli, as no reduction in the response to the first stimulus after a change was observed during early morning, which also depends on visual-motor skills.…”

Section: Discussionsupporting

confidence: 84%

Circadian variations in self-monitoring, a component of executive functions

García

Ramírez

Valdéz

2015

Biological Rhythm Research

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2Declaration of interest statement: The authors hereby state that there is no financial interest or benefit arising from the direct application of this research; therefore, there is no conflict of interest whatsoever. AbstractThe objective of this study was to identify circadian rhythms in self-monitoring, a component of executive functions. Participants were 10 undergraduate students, age: 18.5 ± 2.68 years, two male and eight female. They were recorded on a 30-h constant routine protocol; rectal temperature was recorded every minute and performance on a tracking task was assessed every 100 minutes. Self-monitoring indicators were adjustments of responses to random changes of speed and trajectory of a circle moving on the computer screen. Participants showed better accuracy during the afternoon, with decreases in the morning (06:20 and 08:00h). These variations showed a phase delay of 2:29 ± 2:19h with respect to the circadian rhythm of body temperature. In conclusion, there are circadian variations in self-monitoring.The decline in this component of executive functions could cause serious accidents among people working or studying during a morning shift, as well as commuting to and from work or school. (Author correspondence: valdez.pa@gmail.com).

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Section: Discussionsupporting

confidence: 84%

Circadian variations in self-monitoring, a component of executive functions

García

Ramírez

Valdéz

2015

Biological Rhythm Research

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“…This revealed that late sleepers' timing was more stable in the evening than in the morning, whereas early sleepers exhibited no difference between the two recordings. Our result can therefore be added to a growing list of aspects of human performance that are subject to circadian fluctuations (Kleitman et al, 1938; Atkinson et al, 1993; Coldwells et al, 1994; Gauthier et al, 1996; Monk and Kupfer, 2000; Dosseville et al, 2002; Van Eekelen and Kerkhof, 2003). In our context, it is interesting to notice that even long-term, massed practice of these expert musicians has not been able to wash out circadian fluctuations in performance.…”

Section: Discussionmentioning

confidence: 90%

“…Circadian fluctuations are evident in various physiological functions of the human organism: clinical chemical parameters and endocrinological parameters such as concentration of hemoglobin, potassium, iron, adrenaline, noradrenaline, cortisol, and other hormones in blood and serum (Wisser and Breuer, 1981), body temperature (Aschoff, 1955) as well as cognitive functions such as reaction time to sensory cues (Kleitman et al, 1938) and memory tasks of various complexity (Van Eekelen and Kerkhof, 2003). In particular, circadian fluctuations also occur within the sensorimotor system.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, circadian fluctuations also occur within the sensorimotor system. Circadian maxima and minima have, for example, been reported in grip strength (Atkinson et al, 1993), elbow flexion torque (Gauthier et al, 1996), back and leg strength (Coldwells et al, 1994), finger-tapping (Dosseville et al, 2002), tracking tasks (Van Eekelen and Kerkhof, 2003), and manual dexterity (Monk and Kupfer, 2000). However, to our knowledge, no studies exist that investigate variations in musical performance according to the circadian cycle.…”

Section: Introductionmentioning

confidence: 99%

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The influence of chronotype on making music: circadian fluctuations in pianists' fine motor skills

Vugt¹,

Treutler²,

Altenmüller³

et al. 2013

Front. Hum. Neurosci.

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Making music on a professional level requires a maximum of sensorimotor precision. Chronotype-dependent fluctuations of sensorimotor precision in the course of the day may prove a challenge for musicians because public performances or recordings are usually scheduled at fixed times of the day. We investigated pianists' sensorimotor timing precision in a scale playing task performed in the morning and in the evening. Participants' chronotype was established through the Munich Chrono-Type Questionnaire, where mid-sleep time served as a marker for the individual chronotypes. Twenty-one piano students were included in the study. Timing precision was decomposed into consistent within-trial variability (irregularity) and residual, between-trial variability (instability). The timing patterns of late chronotype pianists were more stable in the evening than in the morning, whereas early chronotype pianists did not show a difference between the two recording timepoints. In sum, the present results indicate that even highly complex sensorimotor tasks such as music playing are affected by interactions between chronotype and the time of day. Thus, even long-term, massed practice of these expert musicians has not been able to wash out circadian fluctuations in performance.

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“…Circadian variations have been found in tasks which measure executive functions without specifying the components involved, for example, complex labyrinths, 32 or in a dual task 33 . However, it is necessary to identify circadian rhythms in each one of the components of executive functions.…”

Section: Introductionmentioning

confidence: 99%

Identification of circadian rhythms in cognitive inhibition and flexibility using a Stroop task

Ramírez

García

Valdéz

2012

Sleep and Biological Rhythms

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The objective of this study was to identify circadian rhythms in cognitive inhibition and flexibility using a Stroop task. Eight undergraduate student volunteers (age = 17.75 ± 0.46 years; 7 females), participated in this study. Participants were recorded in a constant routine protocol for 29 h. Body temperature was recorded every minute, and every 100 min participants completed scales of sleepiness and tiredness and responded to a Stroop task with shifting criteria. This task includes a chart with 48 colors printed with incongruent names. A random half of the words had a point on the left. Participants were instructed to do four actions: (i) read all the words; (ii) name the color in which each word was printed; (iii) read the words marked with a point and name the colors of the unmarked words; and (iv) name the colors of the words marked with a point and read the unmarked words. The time and errors in naming the colors were considered inhibition indices, while performance time and errors upon shifting criteria were considered flexibility indices. Circadian variations were found in inhibition (color‐naming) and flexibility (shifting criteria). These cognitive processes also showed decay with time on task. In conclusion, there were circadian variations in two components of executive functions: inhibition and flexibility, modulated by sustained attention (time on task). These results may explain the difficulties experienced at night in problem‐solving that requires adjustment of behavior in accordance with environmental demands.

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No interference of task complexity with circadian rhythmicity in a constant routine protocol

Cited by 22 publications

References 33 publications

Circadian variations in self-monitoring, a component of executive functions

Circadian variations in self-monitoring, a component of executive functions

The influence of chronotype on making music: circadian fluctuations in pianists' fine motor skills

Identification of circadian rhythms in cognitive inhibition and flexibility using a Stroop task

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