Final answer:
Intrusion symptoms in acute stress disorder include recurrent distressing dreams as a response to a traumatic event, among other symptoms like hypervigilance and problems with concentration.
Step-by-step explanation:
Intrusion symptoms in acute stress disorder include recurrent distressing dreams. Acute stress disorder often occurs as a response to a traumatic event, where individuals may experience a wide range of symptoms, like distressing memories, dreams, or flashbacks of the traumatic event. Other possible symptoms, not specific to intrusion but part of the broader spectrum of stress responses, can include hypervigilance, problems with concentration, and an altered sense of reality.
These intrusion symptoms are part of a normal response to severe psychological trauma. They are associated with the body's attempt to process and deal with the traumatic event. While intrusive thoughts and dreams are a key component of acute stress disorder, on-going symptoms like hypervigilance and concentration difficulties are more broadly related to the general stress response, and an altered sense of reality can suggest more severe dissociative symptoms.