Saint Martin and the Beggar (van Dyck) Saint Martin and the Beggar (van Dyck) Saint Martin and the Beggar is a c.1618 painting of Saint Martin of Tours by the Flemish painter Anthony van Dyck. The painting portrays the saint sharing his cloak with a beggar. It had been in van Dyck's studio for some time by 1621 and may have been completed around 1618. In 1621 he was commissioned by the Chancellor of the Duchy of Brabant, Ferdinand de Boisschot, to deliver a painting of St Martin for the church dedicated to that saint in Zaventem. Van Dyck gave him this painting in fulfilment of the
Christopher H. van Dyck Disease. Using SPECT imaging of the Dopamine transporter, van Dyck’s work has shown that there is loss of dopamine from the aging striatum, and that this is related to a slowing of reaction time, a measure of mental chronometry. van Dyck uses PET imaging to track Alzheimer’s-related pathology, to learn how pathology relates to ApoEApoE genotype, and whether it is diminished by potential treatments. Dr. van Dyck has collaborated with Dr. Richard Carson at the Yale PET Center to test the new PET ligand 11C-UCB-J, which binds to SV2A to provide an assay of presynaptic axon terminals in the human