These are created when Dynamic (or Input) Text is selected and the 'Target' checkbox is checked.
Text Objects created in this way have all of the properties and methods that are described for the Text Field Object.
Access to and from the text is via the .text property.
e.g. txtscripted.text returns the current text, txtscripted.text = "new text" sets the text.
Access to and from the text can also be via an associated variable (See the Advanced Panel). The associated variable must have a different name to that of the Object.