The Effect of Smartphone Use on Memory Consolidation

Department, Center, or Institute

Biology

Secondary Department, Center, or Institute

Neuroscience

Presentation Format

Department Organized Oral Session

Presentation Type

On-campus research

Description

Description: Sleep and quiet rest have both been shown to facilitate the consolidation of memory. We explored the features of quiet rest after learning that account for its effect on memory consolidation, experimentally manipulating the activity that participants engaged in during the minutes after encoding. Eyes-closed quiet rest was compared to both smartphone usage and mental arithmetic. We hypothesized that conditions characterized by minimal mental effort would result in improved memory consolidation, with even very simple instructions to attend to internal states (mental arithmetic) interfering with the memory benefit of rest. Three groups of subjects learned how to categorize 270 abstract dot patterns into three different categories. Following a 15min break in which subjects either rested, used their smartphone, or performed mental arithmetic, participants were tested on their ability to correctly categorize these same dot patterns, as well as new dot patterns, and the category prototypes from which the dot patterns were created.

Department Organized Oral Session Title

Neuroscience Program Talks Session I

Moderator/Professor

David Hollis, Biology and Neuroscience

Session Number

1

Start Date and Time

4-9-2019 9:45 AM

Location

Johns Hall 208

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Apr 9th, 9:45 AM

The Effect of Smartphone Use on Memory Consolidation

Johns Hall 208

Description: Sleep and quiet rest have both been shown to facilitate the consolidation of memory. We explored the features of quiet rest after learning that account for its effect on memory consolidation, experimentally manipulating the activity that participants engaged in during the minutes after encoding. Eyes-closed quiet rest was compared to both smartphone usage and mental arithmetic. We hypothesized that conditions characterized by minimal mental effort would result in improved memory consolidation, with even very simple instructions to attend to internal states (mental arithmetic) interfering with the memory benefit of rest. Three groups of subjects learned how to categorize 270 abstract dot patterns into three different categories. Following a 15min break in which subjects either rested, used their smartphone, or performed mental arithmetic, participants were tested on their ability to correctly categorize these same dot patterns, as well as new dot patterns, and the category prototypes from which the dot patterns were created.