Peripheral awareness software

There should be central targets(consists of numbers) and peripheral targets (letters) where it keeps moving towards center along with change in size. When subjects respond by recognizing the letter the examiner presses the spacebar, the position of the moving peripheral target should appear in terms of degree and the letter should disappear whenever spacebar is pressed. The letter should be typed in the keyboard and software should display whether the letter is correct or wrong. Please refer the document provided for detailed procedure.