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Posts Tagged ‘oxytocin’

Happiness in Animals?

Friday, September 21st, 2012

Of course! It seems like a simple question, but as is often the case, our big, complicated brains allow us to add nuance to the answer. I’ve gone on record as arguing that yes indeed, mammals like dogs and horses can be happy, how could they not be? Feeling good is a way for the body to tell the brain (as if they were separate, forgive me for this simplistic duality) that it is in an environment that is safe and healthy. The neuro-hormones associated with happiness, like dopamine and oxytocin are shared by all mammals, and expressive mammals like dogs have the same facial expressions as we do when we are happy ourselves. I write about this in the book For the Love of a Dog and show examples in the DVD of the same name.

However, I was reminded that the question has more depth than “can a dog feel happy?” while reading  the book Mental Health and Well-being in Animals, edited by Frank McMillan. It is an excellent book for anyone interested in the mental life of animals, with chapters by Pam Reid, Marian Dawkins (on suffering, always an extremely thoughtful writer), Mark Bekoff, Suzanne Hetts, Temple Grandin, Jaak Panskepp, Bernie Rolland, and on and on. A truly impressive collection of knowledgeable, thoughtful people.

McMillan himself wrote the chapter titled “Do Animals Experience True Happiness?” In it, he reminds us that the concept of “happy” has two meanings: 1) a temporary mood or short term experience (joy, enthusiasm, pleasure) and 2) a long-term state associated with, in his words, “one’s evaluative overview of life.” In other words, there is a difference between being happy the moment you discovered you won a prize, and whether you’d describe your life as a happy one. “We just want you to be happy, dear,” coming from your parents isn’t asking that you have a few seconds of pleasure from a chocolate chip cookie, but rather enjoy a long-term state of satisfaction and contentment with life overall.

McMillan suggests that we use the term “happy” for the short-term state and “happiness” for the long-term one. It’s the “happy life” aspect of happiness that causes people to question whether animals can experience happiness. All biologists I know agree that mammals can experience short term pleasure, but some argue that animals like dogs are not able to evaluate and make judgements about their lives. McMillan writes an extremely thoughtful and thought-provoking article about this issue, arguing in part that animals exhibit many of the same needs that people have in order to achieve long-term happiness (such as control over their environment, a sense of achievement, and comparisons with others).

These are important and interesting arguments, and McMillan ends the article with an anecdote of a Beagle named Billy, whose relentless enthusiasm makes it impossible not to describe him as an animal who experiences happiness. Billy’s case brings us the concept of “set point,” or the well recognized tendency of individuals to have a base level of happiness (or lack thereof) that may be influenced by short term events, but not for long. I’d add that given what we now know about neurobiology and behavior, much of a person’s emotional approach to life is a question of how their brains function, based both on genetics and experience. Thus, it seems to me that “happiness” is not just a matter of cognitive judgements about one’s life, but also about one’s brain function and physiology. Our dogs may not make the same kind of judgements about their lives as we do (Oh, if only I’d…. when I was younger!), but it does seem reasonable that individual mammals have the same set of biological factors that influence whether we are generally cheerful or not as we go through out days. I’ve known so many dogs I’d call truly happy, others I’d categorize as experiencing “happy” times but not true happiness.  You?  Willie, by the way, seems to tilt between extreme joy and extreme anxiety on a daily basis.  What about your dogs? (And you… would you describe yourself as a “happy person?” Do you think that influences your dog(s)?)

MEANWHILE, back on the farm: Holy moly, there is a lot going on. The wolf controversy continues to take lots of my time (about to do an interview on it now, testifying next week at the NRB in Eau Claire) and I have lots of evening talks to prepare for. In addition, fall in the country is wonderful and, well …, full. There are apples to pick & process for my annual apple/wild plum butter sauce, tons of gardening to do (just ordered a few tons of mulch, oh my), barns to clean out, windows to wash, garages to clean, trees to trim, thistles to kill, and on and on. And now, cats to get final vaccinations for . . .

Introducing the next, and hopefully VERY long, chapter in life on the farm. As many of you know, after a feral cat had kittens in my barn I had hopes of taming her and keeping one her kittens as barn cats. She had other plans, being a truly wild animal, and after I had her spayed, she attempted to lure her kitten away from the barn and into the woods. One can hardly blame her; after all, from her perspective, I stole her kittens (probably ate them for all she knew), trapped and tortured her and then expected her to stay? I wish I knew where she was, but am glad that she is spayed and won’t be having more litters.

That left me with no cats on the farm at all, and when the cats away…. Yup, the mice will play. Worse, the rats were not just increasing, they were beginning to hold conventions. I expected to walk into the barn and find them holding little cell phones and video cameras. I could write an entire article on rats, and how much I adore domestic ones as pets, and how much I dislike having to rid the barn of them. I’ll summarize by saying that the last time I pretended there were no rats in the barn they ended up in my house. It’s one thing to have a pet rat. It’s another altogether to see a wild one run across your kitchen floor and discover the gaping holes they’d chewed in your cabinets. (And to hear your friends suggest that they might never visit again.)

As often happens, the  universe provided: Right after Xena the feral cat disappeared and Calico had found a wonderful new home, I learned that neighbors had a momma cat who showed up in their shed half dead, starved and pregnant. She eventually had 7 healthy kittens, thanks to the care and concern my friends showered upon her. Momma was clearly raised around people, she was super friendly and sought out people to rub against. When I contacted them they had one kitten left and also needed to find a home for momma. And so, here they are, momma Nellie (bottom) and kitten Polly, who are now settled into Redstart Farm, I hope for many, many years to come. They came with horrific diarrhea but I think we have that turned around. Nellie continues to gain weight and Polly is growing like a weed. Polly (both cats are polydactyl) is all white but her eyes are green and she does not appear to be deaf. She might have some health challenges in the future (all white cats are more susceptible to skin cancer) but I’ll give her the absolute best life I can. And how many barn cats have a cat tree in the hay mow?

Here’s one of fall’s most reliable predictors: the wild sunflowers in bloom in front of the barn. It is always bittersweet to see them.

But it is cool (yeah!) and raining today (even better) and we get to be home this weekend. Willie and I will work sheep a little, but I’m afraid his shoulder is regressing. He was visibly limping last week, so we’re back to exercise restrictions and lots of PT exercises. I  honestly don’t know if he’s going to be able to do the physical work to be able to compete in trials–driving a big course takes lots of ‘short stopping’ and stress on his injured ligaments. (His tendon was surgically repaired, but no such possibility for the medial ligaments that were torn.) We’ll see, I’m taking a long term, philosophic approach, and remind myself every day that Willie still can work sheep at the farm, and that’s more important to him than anything else. He’s entered in one more trial and a sheepdog clinic in mid October, we’ll see how he’s doing. He doesn’t know about any of this and is happy it’s cool and that Jim and I are home and he gets to work sheep a little bit. Life is good.

New DVD on Animal Assisted Therapy!

Wednesday, April 4th, 2012

We just released a DVD of the seminar I did in Naples, Florida on Animal Assisted Therapy and Activities, “Lending a Helping Paw.” I’m excited about it, because it gives me the opportunity to help individuals and organizations who want to help others. It is an example of an activity we can do with our dogs that is a triple win (for us, our dogs, and people who need some oxytocin and/or physical therapy). Because of that, old social worker that I am, it’s near and dear to my heart.

Speaking of hearts, and what fills ours with happiness, the question arises about how effective AAT (Animal Assisted Therapy) and AAA (Animal Assisted Activities) really are. I remember a conference put on by the Delta Society many, many years ago that included a controversial study. It showed that, in this study anyway, the greatest benefit was to the owners of the dogs, not the patients in the facility. Whoops. While the audience greeted the news with a disapproving silence, I was cheering in the wings, because it’s good to examine the issue objectively, rather than just following our hearts in this case.

Indeed, the study was very useful and no doubt had an impact on “best practices” as currently defined. It found that the teams in this case had just walked into people’s rooms without asking permission. No surprise then that the residents weren’t all in favor of the project; they’d already lost so much control in their lives that the last thing they needed was to lose more. That’s why good programs like The Delta Society and TDI emphasize the importance of putting the patient first, and letting them drive the system.

But the question remains: Is AAT and AAA really effective? First, we need to distinguish between AAT and AAA. Much of what people call AAT isn’t truly therapy in the medical sense of the word.  To be labeled as therapy the interactions need to be directed or delivered by health and human service professionals, with goals set, treatment plans written and progress carefully recorded. Animal Assisted Activities, on the other hand, include visits, petting, games and tricks.

Here’s the good news for those of us who want to believe that AAA and AAT are beneficial to the recipients: There is indeed research that shows it’s efficacy in several modalities:  Two studies that I can think of off the top of my head found that visits from dogs decreased the perception of pain after surgery. One study asked children to rate their pain (Robbins et al, J of Holistic Nursing, Vol 24, No 1, 206) and another looked at the amount of pain medication used after joint surgery, which is a good, objective and quantifiable measure (Kaplan, AAT Conference Abstract 2004). A third study found that walking with a dog significantly increased compliance with physical therapy programs and increased ambulation exercise: 28% refused to walk without a dog, only 7.2% with a dog. In addition, steps walked more than doubled once patients did walk (Abate et al J. of Cardio. Nursing 2011).

This is not surprising to those of us who are aware of the impact of dogs on our oxytocin levels, and the impact of oxytocin on pain perception (it decreases), immune responses (it increases) and affect (it tends to make us feel safer and more secure). But we do have to be careful here: Not everyone benefits from visitations or therapy from a companion animals. You have to like dogs to get an oxytocin rush from them. (Most “therapy” animals are dogs, but some programs have cats or rabbits for selected patients. No reports of sheep yet….) Awhile ago I visited a senior center with a good friend and her dog. I’d guess about half the people we saw were interested in interacting. The rest appeared to be either neutral or clearly avoiding an interaction. My friend knows what she is doing, and was careful to not impose her dog onto anyone who wasn’t a dog lover.

This all gets back to one thing I emphasize in the DVD: The patient is the star of the program. Not your dog, not you. As much as we love our dogs, if we do this right we’re doing it for people who aren’t as fortunate as we are, and don’t have the opportunity to interact with dogs as we do. It’s all about them, and keeping that in mind is critical to a program’s success.

Other aspects of AAT and AAA are essential too: The Lending a Helping Paw DVD has an extensive section on what dogs are suited for therapy work, and how to ensure that your dog is really enjoying the process (these are the 2 most common problems that professionals in the field encounter). It discusses organizations that certify teams, what is required to obtain certification and how to work with facilities in a professional and pro-active way.

MEANWHILE, back on the farm: Instead of playing with the lambs or gardening, last night I went to a senior facility outside of Madison and delivered copies of the DVD to one of the stars of the show: Ruth Trameri. She’s the lovely lady on the right of the cover, with my good friend Beth Viney’s (on the left) and her certified therapy dog, Czar. (Czar was an early admirer of my Gr Pyr, Tulip… that’s actually how Beth and I met.) Here they are,  gracing the cover of the new DVD:

And here’s a video from the DVD of Tootsie’s first visit to a facility. We used her (and Willie and 3 other dogs) to evaluations of  potential therapy dogs. (Tootsie passed, Willie… no surprise here, does not: too enthusiastic). This video segment is testing for one of the most important qualities of a good therapy dog — sociability. Dogs need to be interested in everyone, true social butterflies, but calm and respectful at the same time. Watch how Tootsie tells us where she’d most like to be…. (and feel your oxytocin levels rise?). Thanks to Beth Viney, the Director of Pet Pals in Madison WI, Dr. Linda Sullivan, and Pet Pals volunteer Diane Peltin and Ruth Trameri for helping with the evaluation section of the video, we all had a great time and it resulted in some very instructive (and, I might add, amusing) videos.

 

Oxytocin Increases When Your Dog Looks at You

Wednesday, October 21st, 2009

A friend and colleague (Toni Ziegler, an internationally known primatologist) sent me an article in a journal I usually never see, Hormones and Behavior, and I was sure you’d be as interested in it as I am. The authors, M. Nagasawa et. al., found a correlation between the level of an owner’s oxytocin and how much their dog tended to gaze directly at them.

First off, you probably know that oxytocin is the “feel good” hormone that is associated with lactation and social bonding. Someone called it the “wine and candle light” hormone, because it seems to play an important role in social relationships and feelings of trust and affection. (People are more trusting of strangers if oxytocin is sprayed into their nose–leading me to speculate in For the Love of a Dog that we should all be armed with a spray bottle of the stuff). Oxytocin correlates with friendly social behavior in rats, monkey, sheep, you name it, and even has been found to calm “depressive tendencies” and anxiety in people.

The authors of the study first surveyed 55 people to evaluate the level of relationship with their dogs. (They asked: “How much are you satisfied with your dog?” and “How much do you feel you can communicate with your dog?” Of course, if I’d been asking, my questions might include “How often to you rub your dog’s belly?” and “How important is your dog in your overall happiness?” and “How many months would you say you spend more on your dog than yourself?” and “Don’t you think you should consider buying yourself a new pair of pants before you buy another dog toy?” But then, it wasn’t my study….)

Each owner/dog pair then came to the researchers, and was video taped in a room with the owner sitting in a chair. At first the owner was alone in the room for 20 minutes, then the dog was allowed in for 30 minutes. Once inside, the dog was allowed to move around the room freely, but was asked to sit on cue every 3 minutes. The owners could talk to their dogs and pet them, but not give the dogs treats. Before and after, the owner’s heart rate and blood pressure was taken, and they were asked to provide a urine sample both before and after as well.

Here are some of the results: The 55 owners sorted into 2 groups: 12 of them reported high levels of satisfaction with their dogs and ALSO had the longest duration of times that their dog’s looked (“gazed”) at them during the experiment. Those people, whose dogs looked at them the most, also had significantly higher levels of oxytocin after the experiment than the people who reported lower levels of satisfaction and whose dogs looked at them for shorter periods of time. Additionally, there was a significant correlation between the frequency of “exchange bouts” (looking, talking) initiated by a dog’s gaze and the level of oxytocin in the owner’s body. In other words, the more the dog looked at the owner, the higher the level of oxytocin IF the owner was one of the one who reported a high level of satisfaction in their dog. There was no correlation between duration of gaze and oxytocin levels in the (larger) group who reported less satisfaction and whose dogs looked at them for shorter periods of time.

What does all this mean? Well, if you put your science hat on, you know to be careful of correlations. It seems reasonable and (common sensible) to argue that IF you are strongly bonded to your dog, then you have a surge of oxytocin when he or she looks at you and you look back. (I think my oxytocin is rising right now, just thinking about Lassie’s face!). However, I’ve always wondered if some individuals inherently have lower levels of oxytocin and that makes them less affiliative with others, a bit more stand off-ish. Dogs too? Could that explain why some dogs are puddles around people and others more aloof? Levels of oxytocin do correlate in mice, for example, with less or more affiliative behavior, so it seems reasonable that it could occur in people too.

That could create another hypothesis for the results. Do people with inherently higher levels of oxytocin tend to be more bonded to their dogs? However, a good study should account for this, and indeed, there were no significant differences between oxytocin levels before the experiment between the 2 groups of people. So it looks as though it was the interaction itself, during the 30 minutes that the dog and owner were together, that increased oxytocin levels. Although none of us can accurately guage our oxytocin levels without measurements, I swear there’s a feeling I get that correlates with an oxytocin surge. It’s the way you feel when you look at a puppy, or a kitten, or a two year old child… and get what I can only describe as “goo-ey” and “warm” and just overwhelmed with loving feelings. Know what I mean? Do you thank that is part of what makes a dog a “forever” dog or a “heart dog?”

Whether we can feel  it or not, oxytocin has got to be good for us. Remember when I said that oxytocin decreases anxiety? It seems to have a positive effect on many systems: it is produced in the hypothalamus and decreases activity of what’s called the “hypothalamic-pituitary-adrenal axis” (use that when you want to be cool, you could also just call it the stress response though!) In other words, more oxytocin, less adrenalin, less anxiety, less immune suppression, etc. We’ve always known our dogs are good for us (mostly… unless, uh, they’re not), but here’s a biological explanation for it beyond the fact that they make us feel good.

Speaking of oxytocin (with apologies for indulging myself), here’s a photograph I found last night, buried in files on my computer. I wasn’t going to use it, but it makes me all goo-ey and oxytocin-y to look at it, so I thought it was relevant. It’s of me and my Tulip long ago, several years before she passed away. Here’s hoping you have a dog right now that raises your oxytocin too.

And here’s another feel good picture, fall leaves that fell this weekend after a hard, hard freeze.

xxx