Robert McCrum in The Guardian:
Alexander Portnoy lies on the couch. Dr Spielvogel sits behind, listening to a subject that is, says Roth, “so difficult to talk about and yet so near at hand”. In short, masturbation, and its corollary, satyromania. To facilitate his solitary lust, Portnoy commands a far richer arsenal of sex aids than most horny young men: old socks, his sister’s underwear, a baseball glove and – notoriously – a slice of liver for the Portnoy family dinner. This is a “talking cure” as Freud never envisaged it, a farcical monologue by – this is Roth again – “A lust-ridden, mother-addicted young Jewish bachelor”, a tirade that would “put the id into yid”. Alex is an archetypal Jewish-American son, coincidentally the same age as his creator, and a former “honour student” who’s now working in New York as a civil rights lawyer. His mother would have preferred him to become a doctor, marry and have children, but we are all too aware that her wishes will never be part of her son’s adult life. Alex free associates for Spielvogel with a wild frenzy that some have suggested is owed to the standup comics of Roth’s youth, and perhaps near-contemporaries such as Lenny Bruce. Roth’s response has been to identify his main influence as “a sit-down comic named Franz Kafka”.
More here.