PTPH1 expression and localization was evaluated by LacZ staining in the brain and a behavioral test battery evaluated PTPH1 loss on CNS functions such as locomotor activity (open field), anxiety-like behavior (open field and elevated plus maze), motor ability, coordination and learning (accelerating rotarod), spatial working memory (Y maze) and nociceptive sensitivity (hot plate). This evidence concerns the gene PTPN3 and Anxiety.