Describe the role of attention on pain perception.
a) Attention can modulate pain perception by directing cognitive resources away from pain stimuli, reducing the perceived intensity of pain.
b) Attention has no significant effect on pain perception, as pain is solely determined by the intensity of the stimulus.
c) Attention can amplify pain perception by increasing sensitivity to pain stimuli and heightening emotional responses.
d) Attention can inhibit pain perception by blocking nociceptive signals in the spinal cord and brainstem.