The Shepherd Paris (van Dyck) in the Wallace Collection. It was acquired by Henry Hope prior to 1807 before being bought by Francis Charles Seymour-Conway, 3rd Marquess of Hertford when the Hope collection was sold at Christie's on 29 June 1816. At that time, it was thought to be a self-portrait of van Dyck himself. The Marquess intended to bequeath the painting to George IV but he outlived the king and was unable to do so. The Shepherd Paris (van Dyck) The Shepherd Paris is a c.1628 painting by the Flemish artist Anthony van Dyck, dating to just after the artist's return from Italy and
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