Individuals engaging in this journaling protocol tend to fall into two groups: low expressors and high expressors, which is unrelated to introversion or extroversion.

“the important thing to know is that both groups both the low expressors and the high expressors benefit from this journaling protocol such that three weeks later and even three months later and even years later both groups are experiencing far less distress and Baseline levels of stress than they did prior to embarking on the journaling protocol at the very beginning”

“one of the more important features of this protocol is that when people do it they tend to bin out into two different groups and these two groups have been described as low expressors and high expressors now low expressors and high expressors have nothing to do with introversion and extroversion”

“these people when they have their physiology measured also tend to have higher amounts of distress and upset in the first bout of writing that first 15 to 30 minute episode so we've got two different groups the low expressors and the high expressors the low expressors on day one are sharing a bit less they're expressing Less on paper of their particular emotions that they can recall from that traumatic or very distressing event and overall based on physiological measures as well so cortisol increases as well as Skin conductance changes in heart rate and blood pressure the lower expressors are effectively relatively more calm less distressed as they write about this very stressful event in their lives relative to the high expressors who have higher blood pressure higher heart rate they tend to be the ones that cry more or hold their breath more or SOB more have higher levels of ctis all during that first round of writing”

“when people do it they tend to bin out into two different groups and these two groups have been described as low expressors and high expressors now low expressors and high expressors have nothing to do with introversion and extroversion that's actually been looked at and”

“the low expressors tend to use less descriptive language in their writing they tend to get less emotional during the first bout of writing that first day of 15 to 30 minute writing whereas the high expressors tend to be people that use a lot of negative language to describe their negative emotions about the negative experience”