The impact of digital technologies on attention and multitasking

Digital technologies (DTs), which include electronic devices and systems that generate, process, and store data, have significantly altered how individuals manage attention. A key area of concern for cognitive psychologists is the effect of multitasking with DTs, such as using laptops or smartphones during educational settings like lectures.

Challenges of multitasking with digital technologies

• Task-switching rather than simultaneous processing - Humans are unable to truly perform multiple tasks at once. Instead, they rapidly switch between tasks, which consumes cognitive energy and often results in mistakes.
• Increased error rates - The mental effort required to switch tasks frequently can lead to reduced accuracy and efficiency in processing information.
• Diversion of attention - Engaging with DTs during learning activities, such as browsing unrelated content, splits focus and hampers the ability to absorb key material.

Positive effects of digital technologies on learning processes

When used appropriately, DTs can enhance learning by supporting educational goals. Their effectiveness depends on the context and manner of use, particularly benefiting specific groups and subjects.

Benefits of digital technologies in education

• Group collaboration - DTs are more effective in small group settings, as they encourage discussion and deeper analysis of content compared to solitary use.
• Focused, short-term usage - Learning outcomes improve when DTs are used in brief, targeted sessions rather than as the primary method of instruction.
• Support for specific learners - Lower-attaining students, those with learning difficulties, or from disadvantaged backgrounds gain significant benefits from the intensive support DTs provide.
• Subject-specific advantages - In subjects like mathematics, where deep cognitive processing is less critical, DTs can be particularly helpful.
• Role as a learning aid - DTs work best when they assist rather than replace traditional learning methods, focusing on enhancing understanding of specific content.

Negative effects of digital technologies on cognitive performance and memory

Despite their benefits, DTs can have detrimental effects on cognitive functions, especially when overused or relied upon excessively.

Drawbacks of digital technologies on cognition

• Association with disorders - Overuse of DTs is linked to conditions such as attention deficit hyperactivity disorder (ADHD) and internet addiction disorder.
• Cognitive overload - Excessive use of computers can overwhelm visual working memory, leading to decreased performance in tasks requiring sustained attention.
• Reduced long-term memory encoding - Constantly recording or accessing information digitally distracts from proper encoding into long-term memory (LTM), as individuals fail to process experiences deeply.
• Shallow thinking patterns - Relying on the internet for quick answers prevents in-depth reflection, resulting in weaker, less detailed memories.
• Limitations in media adaptability - Younger generations, accustomed solely to DTs, often struggle with traditional media forms like reading physical books.
• Comparison with writing - Handwriting strengthens learning more than typing, as it provides motor feedback, builds meaningful connections between reading and writing, and benefits from the slower pace that aids retention.

Key research studies on digital technologies and cognitive processing

Several studies have explored how DTs influence learning and cognitive performance.

Liao (2007) study on computer-based teaching

• Method - Compared test scores of students using computers for learning in small groups versus individual settings.
• Results - Better test results were observed in group settings, indicating that collaborative use of DTs fosters deeper cognitive processing through interaction.
• Conclusions - DTs can be effective learning tools when they promote discussion and engagement among peers.

Moran et al. (2008) study on digital videos in education

• Method - Examined the impact of using digital videos in teaching, focusing on short, targeted sessions versus extended use.
• Results - Test scores improved significantly when videos were used briefly and purposefully as a support tool.
• Conclusions - DTs enhance learning when they supplement rather than dominate educational methods.

Carr (2010) study on laptop use during lectures

• Method - Compared test performance of students who used laptops to access lecture-related internet content during a session with those who did not use DTs.
• Results - Students using laptops scored lower on content tests, showing that multitasking with DTs distracts from learning.
• Conclusions - Diverted attention due to digital multitasking negatively impacts understanding and retention.

Mueller and Oppenheimer (2014) study on note-taking methods

• Method - Tested participants taking notes by hand versus on laptops during a lecture, assessing performance on factual recall and conceptual understanding.
• Results - Both groups scored similarly on factual questions, but handwritten note-takers outperformed laptop users on questions requiring deeper understanding.
• Conclusions - Typing often leads to superficial processing, while writing by hand encourages more meaningful engagement with content.

The 'Google effects on memory' study by Sparrow et al. (2011)

This key contemporary study investigated how reliance on the internet as an external memory source affects internal memory encoding and recall processes.

Aims of the study

• To determine if the internet functions as an external memory system.
• To explore whether memory encoding prioritises the location of information over the content itself.

Method

• Conducted four laboratory experiments assessing:
  • If participants were primed to think of computers when facing difficult questions (measured by speed of reading computer-related words).
  • Recall of information believed to be accessible online later.
  • Recall of specific locations of online information.
  • Whether participants remembered where to find information more than the information itself.

Results

• Participants read computer-related words faster when faced with challenging questions compared to simple ones.
• Information thought to be unavailable online later was recalled better.
• Recall of specific online locations for information was poor.
• Participants remembered where to access information more often than the information itself.

Conclusions

• Difficult questions prompt individuals to think of using computers for answers.
• Belief that information is available online reduces the need to encode it internally or remember its specific location.
• People do not typically recall precise external memory locations, focusing instead on general accessibility.

Evaluation

• Strengths - Identifies both positive and negative impacts of DTs, suggesting future research should focus on enhancing cognitive performance through technology, especially in learning contexts. With over 50% of individuals storing critical personal data digitally, DTs appear to be replacing aspects of autobiographical memory.
• Limitations - Research often focuses on subjects like mathematics, where DTs are more commonly used, and may not apply to fields like psychology that require critical thinking. Many educational institutions adopt digital learning environments assuming universal benefits, yet effectiveness depends on specific usage and subject matter.
• Practical application - Combining traditional learning with DTs, particularly in small, engaging group settings, offers the most effective approach to enhancing learning outcomes.
• Cultural validity - Studies on DTs and cognition demonstrate cultural validity, drawing conclusions from diverse cultural groups, ensuring broader applicability of findings.