behavioral determinism via non-verbal signaling
Saturday, August 21st, 2010Observing the behavior of my dog and cats I’m increasingly convinced that their behavior is deterministic in perhaps every respect. The elusive red dot generated by the laser pointer elicits the same “chase” and predatory instinct from the cats. The dog engages in the same, predictable dominance rituals on our walks (though I’ve learned to be the “pack leader”). In fact, I think animals are only “unpredictable” when people fail to notice or understand their signals (body language, vocals, or other behavioral clues).
People are a bit more complex, but not dramatically so. Anger generates a similar reaction across various species – tensing jaw (or even baring teeth), tightening of muscles orbiting the eyes – the eyes narrow and focus (this same “focusing” is seen when we have a “determined” look about us). Another example: both dogs and humans show interest in something or someone via the “head tilt,” though it’s more pronounced with dogs than humans. This tilting of the head might signal that not only are we interested, but we are non-threatening, as we are exposing our necks to our counterparts. You would have a tough time doing this “neck exposure” if your arch-nemesis was standing in front of you.
Like humans, dogs can become anxious and fearful. In the case of anxiety (stress), people do certain (predictable) things: fidgeting, self-touching (esp touching or rubbing the back of the neck); the vocals change as well – you’ll notice a higher pitch (and perhaps volume) of the person, if speaking. Humans become defensive as well (not sure if that term is appropriate for dogs). Where does a defensive person’s arms go? Generally in front of him, possibly crossed and clasped. While being subjected to an episode of The Bachelorette (long story), the gentlemen all waited nervously—their hands clasped in front of them and in front of their crotch area (symbolically protecting their masculinity). When we are nervous, we “shield” ourselves with our arms, or sometimes with objects.
Dogs signal their confidence via the position of their tail. Their tails act as meters of their level of confidence. A dog (or cat, incidentally) will signal its confidence with their tail position; a tail that is nearly straight up in the air indicates a high level of confidence. A lowered tail indicates a lack of confidence (possibly a desire to submit to a more dominant animal or human). A tail that is in between the legs (protecting the genitals) is indicative of fear. Humans don’t have tails. In our faces, we express our fear by tightening our muscles near the eyes, sometimes bringing the brows closer together. The muscles around the mouth will tighten as well. In context, we will probably express fear in non-facial body language as well, as well as vocals (higher pitch of voice).
The point here is that behavior is often deterministic, based not on contextual knowledge (though that would probably bolster predictability as well, that is not what I’m focusing on here), but on the signals that people (or animals) convey in their non-verbal language.