Which of these is a common side effect of dissociative anesthetics?

Dissociative anesthetics, such as ketamine and PCP, are known to produce effects that can lead to detachment from reality and altered sensory perceptions. A common side effect associated with these substances is blank staring, which occurs as the individual may disengage from their surroundings or experience a lack of responsiveness to external stimuli. This detachment can be visually evident as fixed or unfocused eyes, indicating a state of dissociation from the environment.

The other options do not align with the effects typically observed with dissociative anesthetics. Cravings, for example, are more commonly associated with addictive substances rather than dissociatives. Clear speech and increased focus also contrast with the behavior of individuals under the influence of these drugs, as the dissociative state often leads to slurred speech and cognitive impairment rather than clarity or heightened concentration.