@misc{indiciae23282a01bebb,
  title = {Sympathetic activity is influenced by task difficulty and stress perception during mental challenge in humans.},
  author = {R Callister and N O Suwarno and D R Seals},
  year = {1992},
  doi = {10.1113/jphysiol.1992.sp019269},
  url = {https://pubmed.ncbi.nlm.nih.gov/1474496/},
  note = {Source identifier: 1474496}
}