“…While several studies have reported a relation with levels of positive symptoms in patients with schizophrenia and social anxiety (Penn et al, 1994;Lysaker and Hammersley, 2006;Lysaker and Salyers, 2007;Mazeh et al, 2009), others have failed to find such a relation (Pallanti et al, 2004;Voges and Addington, 2005;Birchwood et al, 2006;Michail and Birchwood, 2009;Romm et al, 2012). Additionally, an association between social anxiety in schizophrenia and negative symptoms has been reported by some (Penn et al, 1994; Mazeh et al, 2009), but not all studies (Birchwood et al, 2006).…”