FORGETTING: INTRODUCTION: DEFINITION: Causes of forgetting: The causes of forgetting are as follows Encoding failure: Consolidation failure: Interference (Interference): There are two types of interference: Proactive interference Retroactive interference ( Retroactive interference) Proactive interference ( Proactive interference): In proactive interference, information already stored in long-term memory interferes with the memory of new information. Retroactive interference ( Retroactive interference): Decay :(DK): Motivated forgetting(Motivated forgetting): Retrieval failure: Organic cause: Method of improving