While it's not accurate to make a blanket statement that all people with borderline personality disorder (BPD) selectively block out the bad parts of their lives and remember only the good ones, it is true that some individuals with BPD may experience difficulties with memory and emotional regulation, which can affect their perception of past events.
BPD is a complex mental health condition characterized by intense mood swings, unstable self-image, impulsivity, and difficulties in interpersonal relationships. People with BPD often have strong emotional reactions to situations, and their memories can be influenced by their emotional state at the time of recall.
In some cases, individuals with BPD may have difficulty recalling certain negative or distressing events due to a psychological defense mechanism called dissociation. Dissociation involves a disconnection between thoughts, identity, consciousness, and memory. It is a coping mechanism that the mind employs to protect itself from overwhelming or traumatic experiences. In such cases, it may seem like they are blocking out negative memories.
On the other hand, some individuals with BPD may also experience a cognitive distortion called "splitting." Splitting is a black-and-white thinking pattern where a person views situations, themselves, and others as either all good or all bad. This cognitive distortion can influence memory recall, leading to a heightened focus on either positive or negative aspects of events or relationships.
It is essential to recognize that each person with BPD is unique, and not everyone with the condition will have the same experiences or memory patterns. While some individuals may have difficulties with memory recall or emotional biases, others may not exhibit these specific traits to the same extent.
If you or someone you know is experiencing difficulties related to BPD, it is essential to seek professional help from a mental health provider who can provide a proper diagnosis and develop an appropriate treatment plan. Therapy, such as dialectical behavior therapy (DBT), has shown to be effective in helping individuals with BPD manage their emotions, relationships, and improve overall well-being.