On TI's datasheet, it specifically lists EEG as one of INA332's potential uses.
EEGs are microvolt level signals, and the INA332 has input offsets of +/- 2 milliVolts.
73db CMRR is quite low, but I argue the input offsets make it impossible to measure a microvolt level signal effectively.
This is an instrumentation amplifier "Designed for low cost"... however I would argue it is not difficult, but physically impossible to pick up an EEG signal using this IC.