Virtual Environmental Enrichment through Video Games Improves Hippocampal-Associated Memory

Area of Science:

• Neuroscience
• Cognitive Psychology
• Human-Computer Interaction

Background:

• Environmental enrichment in rodents enhances hippocampal cognition and neuroplasticity.
• The effects of environmental enrichment on human cognition are less understood.
• Virtual environments in video games offer complex, visually stimulating experiences.

Purpose of the Study:

• To investigate if video game exploration acts as a human correlate of environmental enrichment.
• To determine if playing 3D video games improves hippocampus-associated cognitive functions.
• To compare the effects of 3D vs. 2D video games and passive control on cognitive performance.

Main Methods:

• Assessed recognition memory in experienced 3D video gamers.
• Trained naive gamers in a 3D game (Super Mario 3D World) or a 2D game (Angry Birds) for 2 weeks.
• Measured improvements in mnemonic discrimination and a virtual water maze task.
• Correlated game performance with hippocampus-associated behavioral changes.

Main Results:

• Experienced 3D gamers showed superior performance on a recognition memory task.
• Naive gamers trained on a 3D game improved in mnemonic discrimination and virtual water maze tasks.
• No cognitive improvements were observed in the 2D game or passive control groups.
• Performance in the 3D game correlated with improvements in hippocampus-associated behaviors.

Conclusions:

• Exploration of complex 3D video game environments can serve as a form of environmental enrichment for humans.
• Training with 3D video games significantly enhances hippocampus-dependent cognitive functions.
• Modern video games offer meaningful neural stimulation for the human hippocampus.