…In the WFF, a negative affective state or experience is operationally termed ‘Pain’ [3,4], while a positive affective state or experience is termed ‘Pleasure’ [5]. It is important to remember that…
affective states
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…First, all studies in pain-altered behavior must face the fact that in some species, the pain perception threshold is altered by negative affective states, such as anxiety and d istress4. In…