scholarly journals HEART RATE AS AN INDEX OF THE MENTAL LOAD

Sangyo Igaku ◽  
1968 ◽  
Vol 10 (7) ◽  
pp. 377-379
Author(s):  
Tomikazu ISHIBASHI ◽  
Akira OHTANI ◽  
Takeo MIURA
Keyword(s):  
Heart Rate ◽  
Mental Load

scholarly journals The dynamics of heart rate variability measures during mental load in different age groups

2015 ◽  
Author(s):  
Anush Tumanyan ◽  
Narine Tadevosyan ◽  
Aleksandr Khachunts ◽  
Ira Tadevosyan
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Age Groups ◽  
Older Age ◽  
Regulatory Mechanisms ◽  
Age Group ◽  
Adaptive Responses ◽  
Mental Load ◽  
Functional Capabilities ◽  
Regulatory Systems

The features of heart rate variability before, during and after a brief mental load in three age groups (17–21, 22–35 and 36–60 years old) were studied. It is shown that for all groups during the mental load some tension of central regulatory mechanisms of heart is typical. The highest degree of tension is found in subjects from the III group (36–60 years old). In these subjects the recovery of regulatory systems up to the baseline took more time. These changes of regulatory systems that occur in older age group, most probably, are connected with a decrease of adaptive responses and some limitation of functional capabilities. Refs 16. Figs 2. Tables 2.

scholarly journals Analyzing Relationships Between Causal and Assessment Factors of Cognitive Load: Associations Between Objective and Subjective Measures of Cognitive Load, Stress, Interest, and Self-Concept

2021 ◽  
Vol 6 ◽  
Author(s):  
Nina Minkley ◽  
Kate M. Xu ◽  
Moritz Krell
Keyword(s):  
Heart Rate ◽  
Molecular Biology ◽  
Cognitive Load ◽  
Task Performance ◽  
Perceived Stress ◽  
Mental Effort ◽  
Theoretical Framework ◽  
Self Concept ◽  
Mental Load ◽  
Causal Factors

The present study is based on a theoretical framework of cognitive load that distinguishes causal factors (learner characteristics affecting cognitive load e.g., self-concept; interest; perceived stress) and assessment factors (indicators of cognitive load e.g., mental load; mental effort; task performance) of cognitive load. Various assessment approaches have been used in empirical research to measure cognitive load during task performance. The most common methods are subjective self-reported questionnaires; only occasionally objective physiological measures such as heart rates are used. However, the convergence of subjective and objective approaches has not been extensively investigated yet, leaving unclear the meaning of each kind of measure and its validity. This study adds to this body of research by analyzing the relationship between these causal and assessment (subjective and objective) factors of cognitive load. The data come from three comparable studies in which high school students (N = 309) participated in a one-day out of school molecular biology project and completed different tasks about molecular biology structures and procedures. Heart rate variability (objective cognitive load) was measured via a chest belt. Subjective cognitive load (i.e., mental load and mental effort) and causal factors including self-concept, interest, and perceived stress were self-reported by participants on questionnaires. The findings show that a) objective heart rate measures of cognitive load are related to subjective measures of self-reported mental effort but not of mental load; b) self-reported mental effort and mental load are better predictors of task performance than objective heart rate measures of cognitive load; c) self-concept, interest and perceived stress are associated with self-reported measures of mental load and mental effort, and self-concept is associated with one of the objective heart rate measures. The findings are discussed based on the theoretical framework of cognitive load and implications for the validity of each measure are proposed.

Autonomic Regulation during Rest and Mental Load in Gilles de la Tourette Syndrome

1998 ◽  
Vol 83 (2) ◽  
pp. 515-529 ◽  
Author(s):  
J. H. M. Tulen ◽  
B. J. M. van de Wetering ◽  
F. Boomsma
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Tourette Syndrome ◽  
Color Word ◽  
Plasma Catecholamines ◽  
Baseline Period ◽  
Plasma Catecholamine ◽  
Cardiovascular Activity ◽  
Mental Load ◽  
Plasma Catecholamine Concentrations

Cardiovascular and catecholaminergic activity during mental load were studied in patients with Tourette syndrome. Patients and controls performed the Color Word Test, preceded by a baseline period, with continuous measurements of heart rate and blood pressure. Blood samples for assay of plasma catecholamine concentrations were obtained before and during the test. The patients showed higher heart rate and blood pressure during baseline than controls, but no differences regarding plasma catecholamines. The tics corresponded with transient increases in heart rate and blood pressure. Spectral analysis of cardiovascular variability during mental load gave only limited evidence of increased sympathetic activity and no alterations in parasympathetic activity in the patients. Therefore, our findings indicate enhanced cardiovascular activity in the patients but not during mental load. The effects of tics on the cardiovascular parameters illustrate the functional complexity of the autonomic nervous system in Tourette syndrome.

Mental load, heart rate and heart rate variability

1970 ◽  
Vol 33 (4) ◽  
pp. 277-288 ◽  
Author(s):  
P. S. Blitz ◽  
J. Hoogstraten ◽  
G. Mulder
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Mental Load

Psychophysiological Response Patterns of High and Low Alexithymics Under Mental and Emotional Load Conditions

2003 ◽  
Vol 17 (4) ◽  
pp. 203-213 ◽  
Author(s):  
Matthias Franz ◽  
Ralf Schaefer ◽  
Christine Schneider
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Performance Test ◽  
Electrodermal Activity ◽  
Load Condition ◽  
Continuous Performance Test ◽  
Response Patterns ◽  
Mental Load ◽  
Rate Deceleration ◽  
Load Conditions

Abstract Compared to normals or low alexithymics, high alexithymic subjects show a modified psychophysiological reactivity under experimental stress. This study aims to differentiate these effects under different load conditions (mental vs. emotional load, 5min each). High (N = 33) and low (N = 33) alexithymic subjects were identified by the German version of the Toronto-Alexithymia-Scale (TAS-20). Subjects were exposed to two tasks of the continuous performance test as a mental load condition and two unpleasant movie sequences as an emotional load condition. Heart rate and electrodermal activity (nonspecific skin conductance reactions) were continuously recorded during stimuli presentation. High alexithymic subjects showed a decreased number of nonspecific skin conductance reactions under all load conditions compared to low alexithymics. Initial heart rate acceleration of high alexithymic subjects under mental load was stronger, whereas under emotional load high alexithymic subjects showed a stronger initial heart rate deceleration. Results are discussed with respect to a modified processing of emotionally qualified information in alexithymics.

scholarly journals Heart Rate Variability and Change of T-Wave Amplitude due to Mental Load

1990 ◽  
Vol 26 (Supplement) ◽  
pp. 168-169
Author(s):  
K. Hirayanagi ◽  
K. Enomoto ◽  
C. Saiki ◽  
R. Sumioka ◽  
A. Miyamoto ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Wave Amplitude ◽  
Mental Load ◽  
T Wave

Instantaneous changes in heart rate regulation due to mental load in simulated office work

2010 ◽  
Vol 111 (7) ◽  
pp. 1497-1505 ◽  
Author(s):  
Joachim Taelman ◽  
Steven Vandeput ◽  
Elke Vlemincx ◽  
Arthur Spaepen ◽  
Sabine Van Huffel
Keyword(s):  
Heart Rate ◽  
Office Work ◽  
Mental Load ◽  
Rate Regulation ◽  
Heart Rate Regulation

Easily Applicable Methods for Measuring the Mental Load on Tractor Operators

2020 ◽  
Vol 26 (1) ◽  
pp. 5-14
Author(s):  
Hans Arvidsson ◽  
Gunnar Larsson ◽  
Anders Larsolle ◽  
Gregory Neely ◽  
Per-Anders Hansson
Keyword(s):  
Heart Rate ◽  
Driving Simulator ◽  
Evaluation Tool ◽  
Mental Load ◽  
Assessment Protocol ◽  
Scale Assessment ◽  
Single Scale ◽  
Machine Operators ◽  
Load Simulator ◽  
Operator Workload

Abstract. Agriculture technology is moving toward automation, placing operators in a supervisory role. This change in operator workload may lead to increased stress and higher mental load, resulting in reduced attention and hence greater risk of illness or injury to humans and damage to equipment. This study investigated the use of easily applicable equipment to measure mental load.Three methods were used to measure the mental load on machine operators: heart rate monitoring, two types of electroencephalograph (EEG) evaluation, and an assessment protocol. Three driving exercises (general driving, slalom driving, and loading) and a counting exercise were used in a driving simulator to create different levels of mental load. Due to the number of exercises, a single-scale assessment protocol was used to save time. We found that only the assessment protocol gave clear results and would work well as an evaluation tool. The heart rate and EEG measurements did not provide clear data for mental load assessment. Keywords: Agriculture, Awareness, Continuous measurement, EEG, Heart rate, Mental load, Simulator, Single-scale assessment, Tractor operator, Work machinery.

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