Learn English – the difference between “comprehend” and “perceive”

word-difference

Suddenly today I've encountered a sentence which got me crazy. honestly, I can't understand the difference between "comprehend" and "perceive"?

The first stage in the comprehension process is the perception of the speech signal, an acoustic signal produced the speaker. This includes the position of the tongue, lips, velum, the state of the vocal cords, and the airstream mechanisms.

The full context is:

Perceptions are interpretations of the messages from our environment based on our past experience, the current context, our needs, goals and expectations.

Our ability to perceive and sense contributes to our uniqueness on a further dimension: we have a conscious awareness of ourselves and an ability to go beyond that experience, extending the limits of our consciousness. Perception also refers to later processes that organize and interpret information in a sensory image as having been produced by the properties of objects in the external, three dimensional word.

The first stage in the comprehension process is the perception of the speech signal, an acoustic signal produced the speaker. This includes the position of the tongue, lips, velum, the state of the vocal cords, and the airstream mechanisms. The intrepretation of these sounds is necessary in order to learn the language, therefore, understand the content (Fromkin and Rodman, 1991).

Best Answer

The sentence in your first quote basically means, "in order to understand spoken language, you first need to hear the sounds". Perception is "hearing the sounds", and comprehension is "understanding the words".