Intrusive thoughts are variously reported as images, thoughts, doubts,
impulses etc. Recent accounts of emotional processing make important
distinctions between cognitive activity in verbal form and images. The
comparison of verbal intrusions and images was made on archival data
about intrusive cognitions from 628 university students. Images and do
ubts (a verbal form) occurring together were perceived as more difficu
lt to dismiss than either images or doubts alone. In addition, images
and doubts together were more frequent, more probable, and required mo
re effort to counter than images alone. Likewise, images and doubts to
gether and doubts alone were more worrisome and more frequently trigge
red by various stimuli than images alone. These results suggest that c
ognitive intrusions identified as a mixture of doubts and images are q
ualitatively different and more troublesome than those identified as e
ither doubts or images. These findings are discussed in terms of curre
nt accounts of emotional processing.