Yes, we see both synchronized and
slower electrical activity in the brain (this also happens when we listen to certain music, and occurs when we sleep).
Not exact matches
In deep,
slow - wave sleep, recordings of the
brain's
electrical activity show sparse bursts of big,
slow waves.
However, these observations were
slower than the speed of
electrical activity in the fish's
brain.
For example,
in 1977 it was reported that
electrical activity in the
brains of pointer dogs showed the dogs went through cycles of REM and
slow - wave or non-REM sleep just as we do.