• Mueller and Oppenheimer (2014): Manipulated laptop vs. handwritten notes
• Ward's Studies: Manipulated cell phone presence
Brain Drain Hypothesis
• Mere presence of cell phone can reduce cognitive capacity
• Working memory partially occupied with resisting urge to think about phone
• Fewer cognitive resources available for tasks at hand
Empirical Evidence and Practical Applications
• Robust evidence from controlled experiments (Mueller & Oppenheimer, Ward)
• Real-world applications in education (e.g., optimal note-taking strategies)
• Informs policies on minimizing distractions in professional/academic settings
• Insights into cognitive benefits of gaming inform specialized training programs
Construct Validity
• Clear, well-defined constructs (cognitive capacity, working memory)
• Plausible underlying mechanism aligns with established cognitive theories
Additional Considerations
• Long-term effects of technology use on cognitive development
• Individual differences in susceptibility to technological influences
• Potential for technology to enhance cognitive abilities through targeted interventions
Negative Effect: Divided Attention and Multitasking
Technology, particularly smartphones and social media, has been shown to negatively impact our ability to sustain attention: Constant notifications and the urge to check devices lead to frequent task-switching. This divided attention can result in decreased performance on cognitive tasks
• Negative impacts often relate to distraction and shallow processing of information • Positive effects include potential for targeted cognitive enhancement and skill development • The same technology can have different effects depending on how it's used.