Corrections: The article “Cannabinoid Receptor Type 1 Located on Presynaptic Terminals of Principal Neurons in the Forebrain Controls Glutamatergic Synaptic Transmission,” by Maria R. Domenici, Shahnaz C. Azad, Giovanni Marsicano, Anja Schierloh, Carsten T. Wotjak, Hans-Ulrich Dodt, Walter Zieglgänsberger, Beat Lutz, and Gerhard Rammes, which appeared on pages 5794–5799 of the May 24, 2006 issue, should have contained the following references.
Takahashi KA, Castillo PE (2006) The CB1 cannabinoid receptor mediates glutamatergic synaptic suppression in the hippocampus. Neuroscience 139:795–802.
Kawamura Y, Fukaya M, Maejima T, Yoshida T, Miura E, Watanabe M, Ohno-Shosaku T, Kano M (2006) The CB1 cannabinoid receptor is the major cannabinoid receptor at excitatory presynaptic sites in the hippocampus and cerebellum. J Neurosci 26:2991–3001.