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eeg integration brain current measurement electroencephalography sensors computer low-threshold biosensor neuro neurofeedback eeg eeg eeg eeg eeg

57

11

current threshold nature waterfall flow rainbow stream tree

5

1

rail track old shut down railway tracks tracks threshold railroad ties wooden threshold substructure train transport rails consumes

2

1

railroad tracks crotch soft black-and-white threshold transport system

2

1

stairs threshold the entrance to the house france french countryside country house threshold threshold threshold threshold threshold french countryside

12

0

monochrome track bed tracks rails railway line threshold rail transport gravel

6

2

railroad tracks threshold railroad railroad railroad railroad railroad

5

0

gate threshold light bow sheets architecture crete threshold threshold threshold threshold threshold

3

1

railroad clamping plates tension clamp ribbed plate threshold track rail fastening

1

0

bach threshold fast water waterfall park wild water wet scenic fluent bushes rock stones nature landscape

24

2

architecture house threshold entry door facade wall drink massive stone color

6

1

waterfall jets of water cascades streams wet moisture nature river the threshold of water dam list flood

7

0