A common theme in the psychology literature is the distinction between introverts and extroverts. The former tend to prefer their own company and see social interaction as a necessary evil, rather than something to be enjoyed. The latter, by contrast, are likely to seek out and cherish social contact and may not feel comfortable when alone. These ideas have been very influential, despite the fact that they (the popularised versions at least): (i) take no account of the social circumstances (the role of culture, for example) that can be so influential in shaping behaviour and social interactions; and (ii) also tend to polarize people (that is, put them at one extreme or the other, without recognizing that people can be located along a continuum from one extreme to the other (and will move along that line in different circumstances or at different times).
