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In this video I explain synesthesia, in which stimulation of one sense can automatically stimulate another, such as seeing colors when hearing pitches or tasting sounds. I also demonstrate one way that researchers can test certain types of synesthesia and describe how synaptic pruning is one proposed explanation for the occurrence of synesthesia.

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Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s

Recommended Videos:

TED-Ed – Richard Cytowic – Exploring Synesthesia
https://www.youtube.com/watch?v=rkRbebvoYqI

BBC – When Senses Collide
https://youtu.be/BWGNWgBk76k

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