A patient developed memory deficit for recent events. Anterograde amnesia is a feature of:

Patients seen sholy after head injury exhibit a confusional state in which they are unable to incorporate new memories, is known as anterograde, or posttraumatic amnesia. They may behave in an apparently normal automatic fashion.Also know: The retrograde amnesia involves an inability to recall experiences that occurred before the onset of the amnestic state. Ref: Greenberg D.A., Aminoff M.J., Simon R.P. (2012). Chapter 5. Dementia & Amnestic Disorders. In D.A. Greenberg, M.J. Aminoff, R.P. Simon (Eds),Clinical Neurology, 8e.