Substances with dissociative properties include ketamine, nitrous oxide, alcohol, tiletamine, amphetamine, dextromethorphan, MK-801, PCP, methoxetamine, salvia, muscimol, atropine, ibogaine, and minocycline. Correlations
Hypnosis and suggestibility
There is evidence to suggest that dissociation is correlated with hypnotic suggestibility, specifically with dissociative symptoms related to trauma. However, the relationship between dissociation and hypnotic suggestibility appears to be complex and indicates further research is necessary.Aspects of hypnosis include absorption, dissociation, suggestibility, and willingness to receive behavioral instruction from others. Both hypnotic suggestibility and dissociation tend to be less mindful, and hypnosis is used as a treatment modality for dissociation, anxiety, chronic pain, trauma, and more. Difference between hypnosis and dissociation: one is suggested, imposed by self or other, meaning dissociation is generally more spontaneous altering of awareness. Mindfulness and meditation
Mindfulness and meditation have shown an inverse relationship specifically with dissociation related to re-experiencing trauma due to the lack of present awareness inherent with dissociation. The re-experiencing episodes can include anything between illusions, distortions in perceived reality, and disconnectedness from the present moment. It is believed that the nature of dissociation as an avoidance coping or defense mechanism related to trauma inhibits resolution and integration.Mindfulness and meditation also can alter the state of awareness to the present moment; however, unlike dissociation, it is clinically used to bring greater awareness to an individuals present state of being. It achieves this through increased abilities to self-regulate attention, emotion, and physiological arousal, maintain continuity of consciousness, and adopt an approach to the present experience that is open and curious.
Aneurysmal bone cyst (ABC) is a non-cancerous bone tumor composed of multiple varying sizes of spaces in a bone which are filled with blood. The term is a misnomer, as the lesion is neither an aneurysm nor a cyst. It generally presents with pain and swelling in the affected bone. Pressure on neighbouring tissues may cause compression effects such as neurological symptoms.The cause is unknown. Diagnosis involves medical imaging. CT scan and X-ray show lytic expansion lesions with clear borders. MRI reveals fluid levels.Treatment is usually by curettage, bone grafting or surgically removing the part of bone. 20–30% may recur, usually in the first couple of years after treatment, particularly in children.It is rare. The incidence is around 0.15 cases per one million per year. Aneurysmal bone cyst was first described by Jaffe and Lichtenstein in 1942. Signs and symptoms
The afflicted may have relatively small amounts of pain that will quickly increase in severity over a time period of 6–12 weeks. The skin temperature around the bone may increase, a bony swelling may be evident, and movement may be restricted in adjacent joints.Spinal lesions may cause quadriplegia and patients with skull lesions may have headaches. Sites
Commonly affected sites are metaphyses of vertebra, flat bones, femur and tibia. Approximate percentages by sites are as shown:
Skull and mandible (4%)
Spine (16%)
Clavicle and ribs (5%)
Upper extremity (21%)
Pelvis and sacrum (12%)
Femur (13%)
Lower leg (24%)
Foot (3%)

Causes
Aneurysmal bone cyst has been widely regarded a reactive process of uncertain cause since its initial description by Jaffe and Lichtenstein in 1942.