Presence of mind and Self-possession

Presence of mind noun - Self-control in a crisis; ability to say or do the right thing in an emergency.

Self-possession and presence of mind are semantically related in composure topic. In some cases you can use "Self-possession" instead a noun phrase "Presence of mind", when it comes to topics like level-headedness.

Self-possession noun - Evenness of emotions or temper.

Presence of mind and self-possession are semantically related in ease topic. You can use "Presence of mind" instead a noun phrase "Self-possession".