Quantitative imaging of serotonin autofluorescence with multiphoton microscopy / S.K. Kaushalya and Sudipta Maiti -- Monitoring receptor-mediated changes of intracellular cAMP level by using ion channels and fluorescent proteins as biosensors / Evgeni G. Ponimaskin. [et al.] -- Membrane organization and dynamics of the serotonin1A receptor monitored using fluorescence microscopic approaches / Shanti Kalipatnapu, Thomas J. Pucadyil, and Amitabha Chattopadhyay -- Calmodulin is a 5-HT receptor interacting and regulatory protein / Justin N. Turner. [et al.] -- Identification of novel transcriptional regulators in the nervous system / Federico Remes-Lenicov. [et al.] -- Serotonin 2A (5-HT2A) receptor function: ligand-dependent mechanisms and pathways / Ishier Raote, Aditi Bhattacharya, and Mitradas M. Panicker -- The 5-HT1A receptor: a signaling hub linked to emotional balance / Probal Banerjee, Mukti Mehta, and Baishali Kanjilal -- Do limits of neuronal plasticity represent an opportunity for mental diseases, such as addiction to food and illegal drugs? Use and utilities of serotonin receptor knock-out mice / Valerie Compan -- Use of mice with targeted genetic inactivation in the serotonergic system for the study of anxiety / Miklos Toth.