Conditional Statements Population: Head injury, aphasia, learning and language disability, and cognitive impairment. Objectives: Deductive reasoning, memory, logical thinking, thought organization. Ability Level: Mid to high. Description: This program presents a challenging language task. A hierarchy of conditional statements is presented either visually or auditorily. A simple instruction would be: If sun is in box 12 click rain. Otherwise click clouds. A complex instruction would be: if sun is not in box 3 or rain is in box 20, click clock. Otherwise click car. Features: The program tracks performance and provides an infinite number of stimuli within the following five different lesson types: 1) Simple Conditional, Negative Conditional, Conditional Conjunctive 'and', Conditional Conjunctive 'or', Negative/Positive Conditional Conjunctive 'or'. Speech is natural and intelligible. System Requirements: PC Compatible (486 DX-66MHz processor or higher, Pentium or Pentium II preferred) Microsoft© Windows [3.1, '95, '98, NT4.0], 8 MB RAM. Sound card optional.