<prompt> Differentiating features between neurosis and psychosis, In psychosisInsight is preservedLack of insightPersonality and behavior preservedNone  <response>: Psychosis is defined as gross impairment in reality testing Marked disturbance in personality, with impairment in social, interpersonal and occupational functioning Marked impairment in judgement and absent understanding of the current symptoms and behaviourloss of insight Presence of the characteristic symptoms like delusions and hallucinations. Ref: a sho textbook of psychiatry, Niraj Ahuja,7th edition, page no.83 