Level 0-Low FAS Displays 1 or 2 mild signs of FAS, such as lip licking, avoiding eye contact, turning head away without moving away, lifting paw, partially dilated pupils, and/or panting but commissures of lips are relaxed, occurring fewer than 4 times a minute. Interested in reinforcers (treats, play, attention) and choose to interact.
Level 1-Low FAS-Displays 1 or 2 mild signs of FAS, such as lip licking, avoiding eye contact, turning head away without moving away, lifting paw, partially dilated pupils, and/or panting but commissures of lips are relaxed, occurring fewer than 4 times a minute. Interested in reinforcers (treats, play, attention) and choose to interact.
Level 2-Moderate FAS-Displays 1 or 2 moderate signs of FAS, such as ears slightly back or to the side, tail down, furrowed brow, moving slowly, overly attention seeking, and/or panting with a tighter mouth (dog), occurring 4 or fewer times a minute. Readily accepts reinforcement (treats, toys, attention). Still soliciting social interactions.
Level 3-Moderate FAS-Displays more than 2 moderate signs of FAS occurring more than 4 times in a minute. May refuse reinforcements for brief moments. May also be hesitant to interact but not actively avoiding.
Level 4-High FAS-Severe signs of FAS without aggression, such as immobility, fidgeting, escape behavior, dilated pupils, excessive panting (dog), increased respiratory rate, trembling, tense closed mouth, ears back, and/or tail tucked or thrashing (cat). May or may not be accepting any types of reinforcers. Not interested in interacting and may be showing active avoidance (moving away).
Level 5-High FAS-Severe signs of FAS with aggression, such as growling, lunging, barking, hissing, snarling, and/or snapping.