Before revision: When a reader or listener "loses the train of thought" (i.e., loses the relation between consecutive sentences or phrases, or the relation between non-verbal concepts in an argument or presentation), comprehension is lost of the expressed or unexpressed thought.Edward Parmelee Morris, "On Principles and Methods in Latin Syntax" (1901), Chapter VI: Parataxis The term "train of thoughts" was introduced and elaborated as early as in 1651 by Thomas Hobbes in his Leviathan, though with a somewhat different meaning (similar to the meaning used by the British associationists): The French translation for to lose one's train of thought is, "perdre le fil de sa pensée".
After revision: When a reader or listener "loses the train of thought" (i.e., loses the relation between consecutive sentences or phrases, or the relation between non-verbal concepts in an argument or presentation), comprehension is lost of the expressed or unexpressed thought.Edward Parmelee Morris, "On Principles and Methods in Latin Syntax" (1901), Chapter VI: Parataxis The term "train of thoughts" was introduced and elaborated as early as in 1651 by Thomas Hobbes in his Leviathan, though with a somewhat different meaning (similar to the meaning used by the British associationists):