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George E. Carvell, PhD, PT   University of Pittsburgh
 
PREFRONTAL CORTEX: DO YOU HAVE ANY THOUGHTS ON THAT?
PREFRONTAL CORTEX FUNCTIONS
  MOTOR PLANNING
  MOTOR JUDGEMENT (ability to solve motor problems)
  SELECTION OF APPROPRIATE AND SUPPRESSION OF INAPPROPRIATE BEHAVIOR ACCORDING TO PREVAILING CIRCUMSTANCES (environment, context, social & moral values, motivation and drives, etc.)
  MODELING BEHAVIOR BASED ON REPRESENTATIONAL MEMORY (use of inner models of reality to govern behavior)
  TEMPORAL ORGANIZATION OF THE SEQUENCE OF MOTOR EVENTS

POSSIBLE EFFECTS OF LESIONS (Primates)
  HYPERACTIVITY & AIMLESS MOTOR ACTIVITY
  INCREASED DISTRACTABILITY & DIFFICULTY SUPPRESSING ORIENTING RESPONSES TO NOVEL STIMULI
  EYE MOVEMENT DEFICITS & VISUAL NEGLECT
  LACK OF FLUENCY & INITIATIVE IN BEHAVIOR AS WELL AS FRAGMENTATION OF BEHAVIOR
  ABNORMAL PERSEVERANCE: REPETITION OF MOTOR ACTS DESPITE THE FUTILITY OF THESE ACTIONS TO REACH A GOAL
  BEHAVIORAL CHANGES: SOCIAL INDIFFERENCE, BLUNTED EMOTIONS, DIMINISHED MOTIVATION, DECREASED VOCALIZATION, WITHDRAWAL & CHANGES IN SOCIAL BEHAVIOR AND AGGRESSION
J. M. Fuster,  Prefrontal Cortex in Motor Control. IN: Handbook of Physiology The Nervous System II Bethesda: Am. Physiol. Soc. Chapter 25, pp 1149-1177, 1981.
Fuster Fig 1  p 1150 
Do you expect better behavior from your pets than from your fellow human beings?