1. Diagnostic and statistical manual of mental disorders;American Psychiatric Association,2013
2. Cognitive therapy and the emotional disorders;Beck,1976
3. Steady state data and a quantitative model of operant generalization and discrimination;Blough;Journal of Experimental Psychology: Animal Behavior Processes,1975
4. Conceptual similarity promotes generalization of higher order fear learning;Dunsmoor;Learning & Memory,2011
5. The spread of fear: symbolic generalization mediates graded threat-avoidance in specific phobia;Dymond;Quarterly Journal of Experimental Psychology,2013