"Psychological harm" refers to emotional or mental damage that can occur to a person's mind, feelings, or well-being. It can result from experiences or situations that cause distress, anxiety, fear, or other negative mental effects. Full definition
(b) the need to protect the child from physical or psychological harm from being subjected to, or exposed to, abuse, neglect or family violence. (legislation.gov.au)
They don't cause any long - term psychological harm to your child. (nhs.uk)
This type of behavior can cause your child psychological harm that may be irreversible. (divorcesource.com)