Which term describes a mental view or perspective on a particular issue?

The term that encapsulates a mental view or perspective on a particular issue is "Perspective." It refers to the way individuals interpret and understand situations, reflecting their beliefs, experiences, and insights. Perspectives can influence how people react to circumstances and inform their opinions and decisions.

While "Outlook" can also relate to a viewpoint, it typically carries connotations of optimism or pessimism, thus it is a more specific term. "Opinion" describes a personal belief or judgment but does not fully encapsulate the broader context of mental frameworks that "Perspective" does. "Vision," although related to foresight or an aspiration about the future, is not synonymous with the idea of a mental view on a particular issue as it implies a more planned or goal-oriented concept. Hence, "Perspective" is the most fitting term for a mental view on specific issues.