New Study Shows Multitasking Combines Both General and Specific Abilities

In the frenetic pace of modern life, multitasking has become an almost ubiquitous necessity—whether it’s juggling emails during a phone call or coordinating dinner preparations while assisting children with homework. Yet, a groundbreaking new study challenges the common assumption that multitasking is a singular, uniform skill. Researchers at the University of Surrey have uncovered that multitasking ability is better understood as a composite of both broad, general cognitive functions and finely tuned, task-specific skills. This insight not only deepens our understanding of cognitive performance but also sheds light on long-standing debates regarding gender differences in multitasking proficiency.

The University of Surrey’s research, recently published in the renowned Journal of Experimental Psychology: Human Perception and Performance, recruited 224 university students who were asked to complete nine distinctive multitasking exercises. These exercises were meticulously curated to reflect three fundamental types of multitasking seen in everyday life: concurrent multitasking, task switching, and complex multitasking. Each type represents a unique cognitive challenge, engaging different neural circuits and mental processes, which the study aimed to disentangle.

Concurrent multitasking involves performing two or more tasks simultaneously. A prime example is talking on the phone while driving, where the brain is required to handle real-time input from multiple sources. The task demands parallel processing abilities and the capacity to allocate attention effectively. Task switching, by contrast, involves rapidly alternating attention between different tasks, such as responding to emails amid an onslaught of notifications. This form of multitasking requires executive control to disengage from one task and re-engage with another seamlessly. Lastly, complex multitasking describes situations like managing a busy kitchen, where multiple, interdependent tasks must be prioritized and planned flexibly in real time—tasks that place heavy demands on working memory and cognitive flexibility.

Analysis of individual performance across these task types revealed a nuanced picture of multitasking competence. Contrary to the prevailing view that multitasking is a monolithic skill, the findings demonstrate that no single ability accounts for success across all multitasking challenges. Instead, task-switching performance hinges primarily on a generalized multitasking capacity that transcends specific contexts. This generalized ability appears to equip individuals with the cognitive agility needed to shift focus between tasks rapidly.

Conversely, concurrent and complex multitasking require a layered skill set: both this overarching multitasking aptitude and specialized competencies unique to the particular demands of each task type. For example, concurrent multitasking success depends not only on general multitasking proficiency but also on an individual’s capacity for divided attention and managing multiple streams of sensory information simultaneously. Complex multitasking, meanwhile, demands robust working memory capacity, enabling individuals to temporarily hold and manipulate multifaceted informational elements as they plan and prioritize effectively.

These findings hold critical implications for interpreting previous research, particularly studies exploring gender differences in multitasking ability. Earlier research produced conflicting outcomes—with some suggesting women hold an advantage, typically in task-switching scenarios, while others indicated men may excel in concurrent multitasking contexts. The present study proposes a reconciliatory perspective: such gender disparities may not reveal intrinsic cognitive superiority but may instead reflect differences in the specific types of multitasking tasks employed in research paradigms.

Dr. Alan Wong, Senior Lecturer and Programme Lead at the University of Surrey’s MSc Psychology in Game Design & Digital Innovation, elaborates on the significance, stating, “These findings show that multitasking is not a one-size-fits-all skill. To understand and improve multitasking, we need to consider both the broad capabilities that apply across tasks and the specialised skills needed for specific situations.” This holistic view challenges both policymakers and educators to tailor strategies that address the multifaceted nature of multitasking.

Supporting this, Dr. Yetta Kwailing Wong, Lecturer at the University of Surrey, emphasizes the need for varied training regimens. She suggests, “Training to improve multitasking abilities shouldn’t focus on just one type of task. Instead, a variety of challenges is required to build both general multitasking ability and specific skills needed for particular scenarios.” This approach underlines the importance of designing cognitive enhancement programs with targeted complexity rather than employing generic stimuli.

Technically, the research methodology utilized an observational study design to evaluate cognitive performance across diverse multitasking challenges. The nine tasks were carefully validated and selected to isolate distinct components of attentional control, memory encoding, processing speed, and executive function. By doing so, the researchers ensured that the interplay between general and specific skills could be precisely mapped to task performance metrics.

The distinction between general and task-specific multitasking abilities finds roots in cognitive neuroscience, particularly in the understanding of the central executive system and the role of working memory in goal management. Working memory capacity—often considered a bottleneck in complex cognitive operations—proved vital in contexts where individuals needed to juggle dynamic sets of instructions and prioritize competing demands effectively. This result echoes decades of prior research underscoring working memory as a cornerstone of advanced cognitive functioning.

Simultaneously, the study’s identification of a generalized multitasking ability corresponds with theories of attention as a fluid resource. The capacity to rapidly switch between tasks without significant performance degradation indicates an overarching cognitive control mechanism that facilitates flexible allocation of mental resources depending on situational demands. This general ability potentially reflects characteristics such as sustained attention, processing speed, and cognitive flexibility.

The practical ramifications of these insights extend far beyond laboratory settings. In professional environments where multitasking is not optional but mandatory—from emergency response teams to software engineers—the differentiation between general multitasking capacity and specialized task-related skills offers a roadmap for personnel selection, training, and work design. Enhancing performance could involve developing bespoke cognitive training protocols that strengthen both the global and local aspects of multitasking.

Moreover, these findings urge a reevaluation of long-standing workplace and educational assumptions about multitasking capabilities. A nuanced understanding encourages managers, educators, and policymakers to assess multitasking competencies in context-specific ways, rather than relying on one-size-fits-all tests or training modules. This tailored perspective could help reduce cognitive overload and improve performance outcomes by aligning task demands with individual skill profiles.

Ultimately, the University of Surrey’s study marks a significant step forward in dissecting the multi-layered nature of multitasking. By moving beyond simplistic notions and embracing the complexity of cognitive skill interactions, this research paves the way for more sophisticated approaches to understanding human performance in an age increasingly defined by divided attention and information saturation.