Exploring construction workers' brain connectivity during hazard recognition: a cognitive psychology perspective.
Pin-Chao Liao1, Xiaoshan Zhou1, Heap-Yih Chong2
1Department of Construction Management, Tsinghua University, China.
International Journal of Occupational Safety and Ergonomics : JOSE
|January 31, 2022
Summary
Construction workers use top-down attention networks to recognize hazards, with the sensory cortex acting as an information hub. This brain connectivity study reveals how workers process threatening stimuli in the workplace.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Occupational Safety
Background:
- Hazard recognition in construction is crucial for safety.
- Limited research exists on the brain's causal mechanisms during hazard identification.
- Understanding brain connectivity can enhance safety protocols.
Purpose of the Study:
- To investigate brain connectivity in construction workers during hazard recognition tasks.
- To explore the flow of information across brain regions associated with threat detection.
- To provide empirical evidence for cognitive theories of workplace safety.
Main Methods:
- Collected electroencephalogram (EEG) data from construction workers performing hazard recognition.
- Applied Granger causality-based adaptive directed transfer function (GCA-DTF) to analyze brain activity.
- Modeled directed and time-variant information flow to understand neural interactions.
Main Results:
- Identified top-down modulation from the dorsal attention network, guiding behavioral goals.
- The sensory cortex acts as a primary information outlet, interacting with frontal and visual cortices.
- Observed a top-down attention reorientation mechanism for processing threatening stimuli.
Conclusions:
- Brain effective connectivity findings support parallel distributed processing theory in hazard recognition.
- This research offers novel insights into the neural basis of workplace safety.
- The study highlights the importance of attention networks in construction hazard identification.
Related Concept Videos
01:20Introduction to Cognitive Psychology
1.8K
Cognitive psychology is the field of psychology dedicated to examining how people think. It attempts to explain how and why we think the way we do by studying the interactions among human thinking, emotion, creativity, language, and problem-solving, as well as other cognitive processes. Cognitive psychology studies how information is processed and manipulated in remembering, thinking, and knowing.
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
1.8K
01:14Role of Cerebellum and Prefrontal Cortex in Memory
634
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
634
01:19High-Level and Low-Level Awareness
413
Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
413
01:15Subconsciousness and No Awareness
391
The concept of subconscious awareness refers to the processing of information below the level of conscious thought, which significantly influences both behaviors and decisions. It is also known as waking subconscious awareness. This complex level of cognition operates without the direct awareness of the individual, facilitating rapid and simultaneous handling of multiple information streams.
An illustrative example of subconscious processing is its role in problem-solving. Often, individuals...
An illustrative example of subconscious processing is its role in problem-solving. Often, individuals...
391
01:17Cognitivism
2.3K
Cognitive psychology emerged as a significant field in the mid-20th century. It focused on understanding humans' internal mental processes. This approach emphasizes how people perceive, remember, think, and solve problems—elements critical to human cognition.
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
2.3K
01:27Halo Effect
20
The halo effect is a cognitive bias in which an individual's overall impression influences judgments about their specific traits. This psychological phenomenon leads people to associate positive characteristics with those they perceive as generally good and negative characteristics with those they view as bad. This effect is particularly influential in social perception, professional evaluations, and decision-making processes.The Psychological Basis of the Halo EffectThe halo effect is rooted...
20