Marketing gadget that tracks brainwaves as you watch TV -- as if they aren't already intrusive in your life

Would you feel comfortable if market researchers could know your every thought?

A headband designed by San Francisco firm EmSense can sense your brainwaves as you have reactions to watching something and then record the data for researchers.

The process of measuring your reaction to something is known as ‘quantitative neurometrics’ and it can be carried out as you watch a computer or television screen.

The firm is launching its ‘in-home’ research panel employing the EmBand monitoring technology in an attempt to get better feedback on emotional responses.

The EmBand can also measure how much attention you are paying, or your ‘cognitive engagement’, by measuring brainwave activity, reported technology site Venture Beat. (read more)