Vision Science and a Scary Colic

<p>This is Episode 23 of Season 3 and in it, I’m going to talk a bit about brain science as well as a scary colic incident.</p> <p>You can find articles on vision science <a href= "https://horsehead.info/your-horses-internal-map/" target="_blank" rel="noopener">here</a> and <a href= "https://horsehead.info/your-horses-internal-mapping-system-part-ii/" target="_blank" rel="noopener">here</a>. It's fascinating stuff! You will learn about place cells, grid cells, boundary cells, and more.</p> <p>Did you know? Place cells – some of the hundred billion neurons in the brain – are individual neurons that fire when an animal is in a specific location. The rate at which certain neurons fire depends on the animal’s location.</p> <p>One cell may fire when an animal is on the corner of a particular space; another may fire when it is along a boundary. Those cells fire again only when the animal returns to that specific location.</p> <p>Place, according to horses’ brains, is largely determined by what they see with their eyes. But it is also framed by their movement (which is embodied by distance and direction). Smell and touch matter less but also can play a role in place cell firing, especially if vision is compromised.</p> <p><a href="https://horsehead.info/your-horses-internal-map/" target="_blank" rel="noopener">Learn more at HorseHead</a>.</p> <p>About colic:</p> <p>As we heard from Dr. Sheryl King at the Best Horse Practices Summit, there are several specific factors that can put horses at lower or higher risk for colic. It follows the three F’s: friends, forage, freedom. In other words, don’t isolate them, feed them hay or grass and try to limit or even eliminate grain, and let them move. Don’t keep them in a stall.</p> <p>Those are rules I’ve followed consistently for about 20 years. And yet.</p> <p><a href="https://besthorsepractices.com/colic/" target="_blank" rel="noopener">Read more about colic</a>.</p> <p><a href= "https://thehorseportal.ca/healthcare-tools/personalized-colic-risk-rater/" target="_blank" rel="noo