Every phone ping costs time
Each phone ‘ping’ steals roughly seven seconds of focused attention, which piles up across a lesson and fragments student focus. For STEAM instruction that matters—turn devices to do‑not‑disturb during direct teaching and reserve tech for tightly scaffolded, collaborative tasks. (techradar.com)
A new paper, “Attention hijacked: How social media notifications disrupt cognitive …,” is published in Computers in Human Behavior and tracks both behavioral and physiological responses to phone-style alerts using a Stroop task and pupillometry. (sciencedirect.com) The research team recruited 180 university students (average age ≈21) and had them complete the Stroop test while receiving smartphone-style notifications at unpredictable intervals. (psypost.org) Across experimental conditions the study measured a roughly seven‑second slowing of information processing after a notification, with the largest delays when participants believed the alerts were synced from their own phones. (cnet.com) Participants in the sample reported receiving more than 100 notifications per day on average, and the authors found that notification frequency and how often individuals checked their phones predicted attentional disruption better than total daily screen time. (psypost.org) Using the study’s figures, 100 notifications at ~7 seconds each sum to about 700 seconds—or roughly 11.7 minutes—of fragmented cognitive processing lost per day, a cumulative cost the paper highlights when discussing real‑world impact. (psypost.org) Method details show three conditions—believable “own‑phone” alerts, visible but known‑fake pop‑ups, and blurred unreadable notifications—designed to separate perceptual salience, conditioning, and personal relevance as drivers of distraction. (sciencedirect.com) The authors attribute interruption to a mix of perceptual prominence, learned conditioning, and social significance, and emphasize that reducing notification volume or salience (rather than only cutting total screen time) should lower the cumulative attentional cost. (sciencedirect.com)
