Question about Accessibility: ToggleButton message/text

I have some ToggleButtons in my interface. On MacOS, I notice that when using VoiceOver, and using accessibility features (control-option-space) to toggle the button off and on, checked and unchecked, the message read is always “deselect MyParameter, toggle button”. Always “deselect”, regardless of the state of the toggle. I would think you should get “select” and “deselect”?

Secondly, if I toggle the button on/off using the Return Key while VoiceOver is on, the message is simply “MyParameter, toggle button” - with no action verb at all.

Is this normal?