<prompt> According to Mahlers theory, period of normal symbiotic phase is:0 - 1 year4 weeks to 4 years8 weeks to 8 years5 to 36 months  <response>: According to Mahlers theory:The normal autistic phase is 0-1 year.Normal symbiotic phase is 4 weeks to 4 years.Separation individualization phase is 5 to 36 months. 