Applying Frequency Bands to Explore the Identification of Two Dimensional Figures

Liu, Chia Ju; Huang, Chin Fei; Chou, Chia Yi; Lu, Ming; Chang, Yung Yi; Ho, Ming Chung

doi:10.4028/www.scientific.net/amm.311.196

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…Similarly, total and theta TRP were signi cantly higher in FA when CAD modelling from the orthographic projection. High F theta was previously reported by Liu et al 47 during mental rotations task and related to higher requirements on attention during the task 48 .…”

Section: Activation Of the Cortical Areas Across The Frequency Bandssupporting

confidence: 53%

“…For example, neuroimaging studies have shown that O cortical area is highly activated when perceiving the visual representations. Furthermore, previous studies have reported the highest TRP in the F and C areas during mental rotation task 47 . In line with these ndings, signi cant difference was noticed between the FA and RA when interpreting orthographic projection in the herein presented study.…”

Section: Activation Of the Cortical Areas Across The Frequency Bandsmentioning

confidence: 69%

“…It has been argued that higher power in theta and beta frequency bands re ect cognitive processing of visual information 42,45,46 . For example, Liu et al 47 reported increased (compared to the baseline) theta band power in F and C areas, and beta bend power in the F area when solving the mental rotation task.…”

Section: Neural Oscillations In Visual Information Processingmentioning

confidence: 99%

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Differences in engineers' brain activity when CAD modelling from isometric and orthographic projections

Lukačević

Becattini

Škec

2022

Preprint

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A way of presenting information in visual representations of technical systems influences the progress and the outcome of the engineering design process. Consequently, an improvement of the means by which information is utilized (generated and interacted with) during the process is one suggested approach of advancing engineering design. Although engineers’ interaction with information has been mostly visual, virtual, and cognitive, little is known about cognition (mental information processing) underlying generation of and interaction with visual representation of technical systems during engineering design. With the aim of narrowing this research gap, the presented study explored the effects of visual representations of technical systems to engineers’ brain activity while generating computer-aided design (CAD) models based on them. More precisely, brain activity of 20 engineers was monitored and analysed using electroencephalography (EEG) during the visuospatially-intensive design tasks of CAD modelling in two conditions; when technical systems were presented with orthographic and isometric projections in technical drawings. Significant differences and effect sizes were found among the total signal and individual band (theta, alpha, and beta) task related power (TRP) both when interpreting the projections in technical drawings and generating 3D CAD models from them. The results suggest that significant differences exist in brain activity when considering the individual electrodes, all the 14 electrodes cumulatively (the TRP across the cortex), the cortical hemispheres, and the cortical areas. In particular, the TRP was persistently higher when interpreting the technical drawing with orthographic projection and generating a CAD model from it. In addition, theta TRP in frontal brain area seems to be particularly important in distinguishing neurocognitive responses to the orthographic and isometric projections. As such, the conducted exploratory study grounds a basis for exploring engineers’ brain activity while solving visuospatially-intensive design tasks, whose segments are relatable to the aspects of visuospatial thinking. Future work will explore brain activity in other design activities that are highly visuospatial in their nature, with a larger sample size and an EEG device of a higher spatial resolution.

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Section: Activation Of the Cortical Areas Across The Frequency Bandssupporting

confidence: 53%

Section: Activation Of the Cortical Areas Across The Frequency Bandsmentioning

confidence: 69%

Section: Neural Oscillations In Visual Information Processingmentioning

confidence: 99%

See 1 more Smart Citation

Differences in engineers' brain activity when CAD modelling from isometric and orthographic projections

Lukačević

Becattini

Škec

2022

Preprint

View full text Add to dashboard Cite

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Differences in engineers’ brain activity when CAD modelling from isometric and orthographic projections

Lukačević

Becattini

Perišić

et al. 2023

Sci Rep

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A way of presenting information in visual representations of technical systems influences the progress and the outcome of the engineering design process. Consequently, improving the means by and through which information is utilised during the process is one suggested approach to advancing engineering design. Engineers’ interaction with visual representations of technical systems is mainly visual and virtual. Although such interactions are cognitively complex, little is known about cognition (mental information processing) underlying the utilisation of design information during engineering design. To narrow the research gap, this study explores how visual representations of technical systems affect engineers’ brain activity while generating computer-aided design (CAD) models based on them. More precisely, the brain activity of 20 engineers is captured and analysed using electroencephalography (EEG) during the visuospatially-intensive design tasks of CAD modelling in two conditions; when technical systems are presented with orthographic and isometric projections in technical drawings. The results imply the sensitivity of engineers’ brain activity in CAD modelling to the visual representation from which a technical system is interpreted. In particular, significant differences are found in theta, alpha, and beta task-related power (TRP) over the cortex when interpreting the technical drawings and CAD modelling from them. Furthermore, the results reveal significant differences in theta and alpha TRP when considering the individual electrodes, the cortical hemispheres, and the cortical areas. In particular, theta TRP over the right hemisphere and the frontal area seems essential in distinguishing neurocognitive responses to the orthographic and isometric projections. As such, the conducted exploratory study sets the foundations for exploring engineers’ brain activity while performing visuospatially-intensive design tasks, whose segments are relatable to the aspects of visuospatial thinking. Future work will explore brain activity in other design activities that are highly visuospatial, with a larger sample size and an EEG device of a higher spatial resolution.

show abstract

Applying Frequency Bands to Explore the Identification of Two Dimensional Figures

Cited by 2 publications

References 14 publications

Differences in engineers' brain activity when CAD modelling from isometric and orthographic projections

Differences in engineers' brain activity when CAD modelling from isometric and orthographic projections

Differences in engineers’ brain activity when CAD modelling from isometric and orthographic projections

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