 According to one type of argument that high-level properties can be represented in experience, experiences can be theory-laden, in the sense that being disposed to recognize an object or property influences the phenomenology and content of the experience. The main premise of the argument is a claim about phenomenology: a place, such as your neighborhood, or a person, such as a close friend, may look different to you than it did when you first saw them (these examples are discussed by Siewert 1998); written text and spoken words in an initially unfamiliar language may look and sound different before and after you come to know their meaning (the auditory example is discussed by Peacocke and Siegel). These are cases in which background knowledge or abilities putatively influences what is represented in experience. If this can happen, then even if a distinction in the philosophy of science between ‘observation and ‘theory’ can be drawn, it will not align with the representation of low-level properties, on the one hand, and high-level properties on the other.