Vacant state (befuddled facial expression)

Delayed verbal and motor responses (slow to answer questions or follow instructions)

Confusion and inability to focus attention (easily distracted and unable to follow through with normal activities)

Disorientation (walking in the wrong direction, unaware of time, date and place)

Slurred or incoherent speech (making disjointed or incomprehensible statements)

Gross observable incoordination (stumbling, inability to walk tandem/straight line)

Emotions out of proportion to circumstances (distraught, crying for no apparent reason)

Memory deficits (exhibited by repeatedly asking the same question that has already been answered, or inability to memorize and recall 3/3 words or 3/3 objects in 5 minutes)

Any period of loss of consciousness (unresponsive to arousal)