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September 24, 2014 AT 12:47 pm

LED Pendant Visualizex EEG #WearableWednesday

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Rain Ashford caught up with Ladyada at World Maker Faire this weekend to show off her EEG-visualizing pendant!

I developed my EEG visualising pendant for use in social situations. The pendant uses EEG (Electroencephalography) signals, which are gleaned from a NeuroSky MindWave Mobile headset. The MindWave is a standalone headset device that detects electrical signals from the brain, which are accessed via a single electrode on a protruding arm from the headband. The electrode makes contact via the wearer’s forehead at the pre-frontal cortex area, where higher thinking states are dominant. The pendant displays attention / concentration data as red LEDs (light emitting diodes) beside meditation / relaxation data in green LEDs on an LED matrix. The pendant has live, record and playback functions, which give the user the choice of displaying live EEG visualisations or recording and playing up to four minutes of previous brainwave data visualisations on a loop if they’re feeling mischievous or want to appear to be concentrating / paying attention or relaxed, or just want to use the pendant as an aesthetic piece of jewellery without the EEG headset. Here’s a link to an interview with me and BBC Technology News filmed at the International Symposium on Wearable Computers (ISWC) in Zurich, Sept 2013.


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1 Comment

  1. gladys delgado-garced

    This is really cool. I met Rain Ashford at Maker Fair. She was very nice and easy to spot with her cool hair color! Next time we will take a selfie.

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