@misc{indiciaefa53d5a45954, title = {Variations in unconditioned stimulus processing in unblocking.}, author = {Peter C Holland and Cynthia Kenmuir}, year = {2005}, doi = {10.1037/0097-7403.31.2.155}, url = {https://pubmed.ncbi.nlm.nih.gov/15839773/}, note = {Source identifier: 15839773} }