How we perceive speech
It is natural to those of us who can read an alphabetic script to think of spoken language in the same way that we view written language. In written language there are words with spaces in between. Sentences are bounded by a capital letter at the beginning and a full stop at the end. Phrases are marked by punctuation, and sounds are also clearly demarcated by different shaped letters. We think of spoken language in a similar way. It seems to us that sounds in words are discrete units produced in a specific order. But this is not so.