Cognitive Load beim Lernen aus Lösungsbeispielen

2003 ◽  
Vol 17 (2) ◽  
pp. 93-101 ◽  
Author(s):  
Alexander Renkl ◽  
Hans Gruber ◽  
Sandra Weber ◽  
Thomas Lerche ◽  
Karl Schweizer
Keyword(s):  
Cognitive Load ◽  
Dual Task

Zusammenfassung: Die Effektivität des Lernens aus Lösungsbeispielen im Vergleich zum Lernen durch Problemlösen wird derzeit mit der Cognitive Load-Theorie erklärt: Beim Lernen aus Lösungsbeispielen wird das Arbeitsgedächtnis weniger belastet, daher bleibt mehr Raum für Lern- und Verstehensprozesse. Um diese These direkt experimentell zu überprüfen, wurde das dual task-Paradigma eingesetzt. 80 Studierende der Geistes- und Sozialwissenschaften wurden auf die Zellen eines 2 × 2-faktoriellen Designs (Faktor 1: Lernen aus Lösungsbeispielen vs. Lernen durch Problemlösen; Faktor 2: mit vs. ohne Zweitaufgabe) verteilt. Der Lernstoff war Wahrscheinlichkeitsrechnung. Der Lernerfolg wurde mit einem Nachtest erfasst. Das Befundmuster hinsichtlich des Lernerfolgs und der Reaktionszeiten auf eine Zweitaufgabe in den vier experimentellen Gruppen stimmte mit den aus der Cognitive-Load-Theorie abgeleiteten Hypothesen überein.

Assessment of Cognitive Load in Multimedia Learning Using Dual-Task Methodology

2002 ◽  
Vol 49 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Roland Brünken ◽  
Susan Steinbacher ◽  
Jan L. Plass ◽  
Detlev Leutner
Keyword(s):  
Cognitive Load ◽  
Dual Task ◽  
Cognitive Load Theory ◽  
Multimedia Learning ◽  
Learning Systems ◽  
Learning Materials ◽  
New Approach ◽  
Direct Assessment ◽  
Load Theory ◽  
Audiovisual Presentation

Abstract. In two pilot experiments, a new approach for the direct assessment of cognitive load during multimedia learning was tested that uses dual-task methodology. Using this approach, we obtained the same pattern of cognitive load as predicted by cognitive load theory when applied to multimedia learning: The audiovisual presentation of text-based and picture-based learning materials induced less cognitive load than the visual-only presentation of the same material. The findings confirm the utility of dual-task methodology as a promising approach for the assessment of cognitive load induced by complex multimedia learning systems.

A dual task study of the effects of increased cognitive load on speech motor control

2015 ◽  
Vol 138 (3) ◽  
pp. 1779-1779
Author(s):  
Katherine M. Dawson ◽  
Grace Bomide ◽  
Mark Tiede ◽  
DH Whalen
Keyword(s):  
Motor Control ◽  
Cognitive Load ◽  
Dual Task ◽  
Speech Motor Control ◽  
Speech Motor

scholarly journals Cognitive Load in eCommerce Applications—Measurement and Effects on User Satisfaction

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Peter Schmutz ◽  
Silvia Heinz ◽  
Yolanda Métrailler ◽  
Klaus Opwis
Keyword(s):  
Cognitive Load ◽  
Dual Task ◽  
User Satisfaction ◽  
Secondary Task ◽  
Design Guidelines ◽  
Interactive Systems ◽  
Primary Task ◽  
Strong Correlations ◽  
General Satisfaction ◽  
Nasa Tlx

Guidelines for designing usable interfaces recommend reducing short term memory load. Cognitive load, that is, working memory demands during problem solving, reasoning, or thinking, may affect users' general satisfaction and performance when completing complex tasks. Whereas in design guidelines numerous ways of reducing cognitive load in interactive systems are described, not many attempts have been made to measure cognitive load in Web applications, and few techniques exist. In this study participants' cognitive load was measured while they were engaged in searching for several products in four different online book stores. NASA-TLX and dual-task methodology were used to measure subjective and objective mental workload. The dual-task methodology involved searching for books as the primary task and a visual monitoring task as the secondary task. NASA-TLX scores differed significantly among the shops. Secondary task reaction times showed no significant differences between the four shops. Strong correlations between NASA-TLX, primary task completion time, and general satisfaction suggest that NASA-TLX can be used as a valuable additional measure of efficiency. Furthermore, strong correlations were found between browse/search preference and NASA-TLX as well as between search/browse preference and user satisfaction. Thus we suggest browse/search preference as a promising heuristic assessment method of cognitive load.

scholarly journals Balance Markers and Saccadic Eye-Movement Measures in Adolescents With Postconcussion Syndrome

2020 ◽  
Vol 55 (5) ◽  
pp. 475-481 ◽  
Author(s):  
Coralie Rochefort ◽  
Elizabeth Legace ◽  
Chadwick Boulay ◽  
Gail Macartney ◽  
Kristian Goulet ◽  
...  
Keyword(s):  
Eye Movements ◽  
Cognitive Load ◽  
Effect Size ◽  
Dual Task ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Saccadic Eye Movements ◽  
Control Group ◽  
Oculomotor Function ◽  
Anterior Posterior

Context Deficits in both balance and oculomotor function, including impairments in saccadic eye movements, are observed in approximately 30% of patients postconcussion. Whereas balance and saccadic eye movements are routinely assessed separately, growing evidence suggests that they should be assessed concurrently. Objective To compare balance measures and saccades between adolescents 1 to 3 months postconcussion and healthy uninjured adolescents. Design Case-control study. Setting Concussion clinic and 2 private schools. Patients or Other Participants Twenty-five adolescents (10 boys, 15 girls; median [interquartile range (IQR)] age = 14 years [11.5–16 years]) between 1 and 3 months postconcussion (median [IQR] time since injury = 39.5 days [30–56.75 days]) and 33 uninjured adolescents (18 boys, 15 girls; median [IQR] age = 13 years [11.5–14 years]). Main Outcome Measure(s) The center-of-pressure 95% ellipse area and medial-lateral and anterior-posterior velocity and the number of saccades in the dual-task balance conditions including a high cognitive load (cognitive condition), a low cognitive load and a gaze-shifting component (visual condition) or both a high cognitive load and a gaze-shifting component (combined condition). Results Concussion-group participants swayed over larger center-of-pressure ellipse areas in the visual (P = .02; effect size = 0.73) and combined (P = .005; effect size = 0.86) conditions but not in the cognitive condition (P = .07; effect size = 0.50). No group differences were identified for anterior-posterior (F1,56 = 2.57, P = .12) or medial-lateral (F1,56 = 0.157, P = .69) velocity. Concussion-group participants also did not perform more saccades than the control-group participants (F1,56 = 2.04, P = .16). Conclusions Performing dual-task balance conditions for which the secondary task involved a gaze-shifting component or both a gaze-shifting component and a high cognitive load resulted in greater sway amplitude in adolescents with concussion. However, these larger amounts of postural sway were not associated with increased saccadic eye movements.

scholarly journals Verification motor and cognitive load in dual task interference

2018 ◽  
Vol 61 ◽  
pp. e428-e429
Author(s):  
E.K. Kang ◽  
D. Shin ◽  
J.Y. Yun ◽  
W. Park ◽  
H.W. Park
Keyword(s):  
Cognitive Load ◽  
Dual Task ◽  
Task Interference ◽  
Dual Task Interference

scholarly journals Prefrontal Cortex Activation During Dual Task With Increasing Cognitive Load in Subacute Stroke Patients: A Pilot Study

2019 ◽  
Vol 11 ◽  
Author(s):  
Eric Hermand ◽  
Bertrand Tapie ◽  
Olivier Dupuy ◽  
Sarah Fraser ◽  
Maxence Compagnat ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Pilot Study ◽  
Cognitive Load ◽  
Dual Task ◽  
Stroke Patients ◽  
Subacute Stroke

scholarly journals Perception of a Haptic Stimulus Presented Under the Foot Under Workload

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2421
Author(s):  
Landry Delphin Chapwouo Tchakoute ◽  
Bob-Antoine J. Menelas
Keyword(s):  
Cognitive Load ◽  
Everyday Life ◽  
Significant Influence ◽  
Dual Task ◽  
Vibrotactile Stimulus ◽  
Average Score ◽  
Single Task ◽  
Haptic Stimulus ◽  
Rest Condition ◽  
Task Conditions

It is clear that the haptic channel can be exploited as a communication medium for several tasks of everyday life. Here we investigated whether such communication can be altered in a cognitive load situation. We studied the perception of a vibrotactile stimulus presented under the foot when the attention is loaded by another task (cognitive load). The results demonstrated a significant influence of workload on the perception of the vibrotactile stimulus. Overall, we observed that the average score in the single-task (at rest) condition was greater than the overall mean score in the dual-task conditions (counting forwards, counting backwards, and walking). The walking task was the task that most influenced the perception of the vibrotactile stimulus presented under the foot.

An Empirical Demonstration of Multiple Resources

1984 ◽  
Vol 28 (1) ◽  
pp. 26-30
Author(s):  
William L. Derrick ◽  
Thomas M. McCloy
Keyword(s):  
Cognitive Load ◽  
Dual Task ◽  
Task Difficulty ◽  
Load Condition ◽  
Operating Characteristics ◽  
Multiple Resources ◽  
Processing Resources ◽  
Motor Load ◽  
Empirical Demonstration ◽  
Multiple Processing

Earlier work by Gopher, Brickner, and Navon (1982) suggested that evidence for multiple processing resources can be demonstrated only if both task difficulty and task priorities are manipulated in dual task studies. To further investigate their approach, ten subjects performed both single and dual task versions of a tracking task and a vowel insertion task, the latter modified to increase either motor load or cognitive load. Dual task trials required equal task emphasis on the favoring of one task over another. As expected, a difficulty by priority interaction was found in the motor load but not in the cognitive load condition, suggesting multiple resources. Performance Operating Characteristics for these data suggested that more than two resources were being utilized by these tasks.

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