One theory for the "why" - I find it takes a higher cognitive load to understand someone with a strong accent. As a result, I don't digest the message as well a

One theory for the "why" - I find it takes a higher cognitive load to understand someone with a strong accent. As a result, I don't digest the message as well and I'm subconsciously biased against complex conversations. I wonder if there is any cognitive psych literature on this? Advice to those with a strong accent: find a way to communicate your message so it takes minimal effort for a receiver to understand. That could be improved English, but there might be easier ways for you to hack this - concise language, use concrete metaphors, keep printed slides in your briefcase, etc.