Monday, October 22, 2012

The linearisation problem


One the constraints on the speaker/writer is that he can produce only one word at a time. When he orders these single words into sentences, and those sentences into texts, he confronts what has come to be called the linearisation problem. He has to choose a beginning point. This point will inflience the hearer/reader’s interpretation of everything that follows in the discourse since it will constitute the initial textual context for everything that follows. Consider just two types of invented example. First of all consider the effect of on identical attributive description being preceded by different evaluative comments:

1.       a. I can’t stand Sally Binns.
    She’s tall and thin walks like a crane
b. I do admire Sally Binns.
     She’s tall and thin and walks like crane

In a the attributes tall and thin and walks like a crane must be assumed to be unattractive, awkward, ungainly. In b those same properties are now endowed with elegance and grace.

Consider next the effect of linear sequencing on the interpreation of event in time where the listener can be expected to derive different implicatures from different ordering’s (Levelt, 1981:91)

2.       a. She married and became pregnant
b. She became pregnant and married

There is, as Levelt reminds us an ordo naturalis, whereby it is assumsed that, if there is no cue to the contrary, the first-mentioned event happened first and the second-mentioned event followed it. It is, then, open to the heare/reader to draw implicature from that ordering , implicatures which will be constrained by both the content of what is said and stereotypical expectations based on previous experience.

We are familiar in the field of visual perception with effects produced by presenting the same stimulus in a different context. A block of colour produced in the centre of a light surround may be perceived as being much darker than that same block of colour presented in the centre of a dark surround. Similarly a line presented in a given context is perceived as being longer than a line of same length which is presented in a different context. In a similiar way, understanding of verbal input processed against the relevant background of the immediately precding co-text. The same sequence of word may take on a different value (Widdowson, 1978) when it is uttered in an different co-text. We shall consider this effect, first level, and then with respect to the organisation of large stretches of discourse (Brown, Gillian and George Yule, 1983:126).