A framework for neurophysiological studies of ingestion, D.A. Booth; regulatory control of food and water intake and metabolism by the liver, D. Novin; hepatic afferents affecting ingestive behaviour, W.R. Ewart; gastrointestinal chemoreception and its behavioural role, N. Mei; gastrointestinal mechanoreception in the control of ingestion, L.A. Blackshaw and D. Grundy; the sense of touch in the control of ingestion, T. Morimoto; gustatory control of ingestion, T.R. Scott and B.K. Giza; olfactory processing controlling food and fluid intake, R. Gervais; the neural control of feeding in primates, E.T. Rolls.