... 6 Social Phobia as a Consequence of Brain Defects Individuals complaining of social phobia often provide vivid accounts of their distress in terms of various physical sensations (e.g. sweating,blushing, ... specificphysical signs with imbalances in autonomic neurotransmission. In thisformulation, the physical complaints typical of social phobia, areassociated with rapid release of catecholamines (noradrenaline, ... prevalence, 15% of the relatives of social phobic patientsfulfilled criteria for social phobia, against 10% among relatives of simplephobic patients, 8% in relatives of panic with agoraphobia and...