Scientifically, ALL mental processes are also physical events. In the same way that a single transistor in a CPU going from one state to another is a physical event. However, that transistor is only meaningful in the context of that CPU and the history of design and programming that got that event to take place. In much the same way every experience of every brain unique as the physical structure of that brain is altered over time which changes the context of that event.
Given that context, we have abstracted what actually happens subjectively into emotions like Love, Fear, Hate and what have you. Still, no two people experience Fear in the same way, and each time each person experiences fear it's also slightly different. But as the shared underlying physical process that corresponds to the term Fear is fairly universal. Adults, Children, Infants all have similar chemical cascades corresponding to structures created by specific parts of all these different DNA strands, but that same basic cascade is also shared by most Mammals.
PS: Philosophy loves to define terms, but without context or a basis in physical reality it's somewhat meaningless.
Given that context, we have abstracted what actually happens subjectively into emotions like Love, Fear, Hate and what have you. Still, no two people experience Fear in the same way, and each time each person experiences fear it's also slightly different. But as the shared underlying physical process that corresponds to the term Fear is fairly universal. Adults, Children, Infants all have similar chemical cascades corresponding to structures created by specific parts of all these different DNA strands, but that same basic cascade is also shared by most Mammals.
PS: Philosophy loves to define terms, but without context or a basis in physical reality it's somewhat meaningless.