Defining the concept
High sensitivity, introduced in the academic literature as Sensory Processing Sensitivity (SPS) (Aron & Aron, 1997) is an innate trait that approximately 15-20% of the world’s population has. This trait is characterized by a high sensitivity of the central nervous system, a deep processing of internal and external stimuli, and a tendency in the cognitive style to process information more elaborately (Aron, Aron, & Jagiellowicz, 2012).
Elain Aron (2004), who started the research in this field, has conceptualized a model that defines this concept from 4 perspectives – the DOES model:
- D – deep processing: information is processed more deeply,
- O – overstimulation: the tendency of being overwhelmed by the quantity of information that they encounter,
- E – emotional reactivity/empathy: the empathy they display, the emotional reactivity as a feedback to other people feelings
- S – subtleties: the nuances and details they perceive.
Although initially it was recognized in a limited number of species, nowadays it is considered that SPS is characteristic to members of more than 100 non-human species (Wolf, van Doorn, & Weissing, 2008). The concept of sensory processing sensibility adopted the biological perspective, which states that for most species there are different personality types – shy or bold members, aggressive or nonaggressive, sensitive or not sensitive (Sih & Bell, 2008).
Regarding highlysensitivity, researchers have focused on sensorial thresholds, that proved to be very low for individuals with this trait. Hipersenzitive people are described as more attentive and able to observe effortlessly subtle stimuli in their environment. Also, it is hard for them to ignore certain characteristics that may be irrelevant and they are easily annoyed by strong inputs, like loud sounds or high temperatures (Aron, 2010).
There has been defined a certain senzitivity towards environment, an ability to register and process information related to the context that people develop in – these characteristics help the person to react and adapt to the challenges and the opportunities associated with the environment (Pluess, 2015). Although adaptation is present for the great majority of individuals, studies suggest that there are large differences in the matter of environment senzitivity (Belsky & Pluess, 2013). This sensitivity may interfere with participation in activities, as well as social, cognitive or sensorial and motor development for children (Dunn, 2001).
At the neuronal level, fMRI studies revealed that SPS is correlated with a greater general activation for the visual areas associated with fine distinctions (Jagiellowicz et al., 2010) and in the regions responsible with consciousness, empathy, feedback to other people emotional expressions (Avecedo et al., 2014).
Differences between SPS and similar traits
SPS is comparable at a behavioral level with traits that are identified by the pause between actions – inhibition (Kagan et al., 1994), shyness (Jones et al., 1996) and introversion (Aron & Aron, 1997). Research and hipersenzitive people describing their experiences reveal that processing any type of input is more complex, so the decisions these persons make and their actions appear after a longer time, comparing to others. This is an aspect that can be assigned to inhibition, but the difference is that the inhibited persons have this type of behaviors such as delays or even lack of actions only for stimuli that they find negative (Jagiellowicz, Aron, și Aron, 2012).
Introversion was correlated with reflexivity and a thoughtful cognitive processing (Patterson et al., 1987), that are a part of the behavior of a hipersenzitive person, but the difference is their sociability – highly sensitive people are not characterized by a low sociability (Aron et al., 2010).
Autism spectrum disorders represent another category that highly sensitive children can be wrongly assigned to because of some common features of the two concepts. Children with autism spectrum disorders can be hyperactive in their interactions with tactile, visual or audio stimuli, but they also present some specific behaviors – repetitive actions, limited interests, difficulties in socialization and lack of empathy – that are not common for highly sensitive children.
SPS and the environment where children grow up and develop
Aron et al. (2005) discovered that a negative childhood environment has been associated with negative affectivity for highly sensitive people, the environment concept including parental practices and attitudes and also childhood experiences. Children with a temper considered more difficult were negatively affected by low quality parental practices and positively affected by high quality practices, compared to children with a less difficult temper, as teachers reported having in mind the social abilities of the children (Roisman et al., 2012).
Similar results have been obtained in another study where negative emotionality measured every 7 months has been associated with a high sensitivity, for both weak and strong mother-child relationships measured at 15 months old(Kim & Kochanska, 2012).
The study conducted by Pluess and Belski in 2010 showed that the baby’s temper reported by the mother at 6 months old was a predictor for the child’s sensitivity, considering the quality of parenting provided in the first 4-5 years of life.
The high level of stimulation that hipersenzitive children experience causes them distress starting from small ages, as excessive crying of very young children has been correlated with this feature of hipersenzitivity (Boterberg & Warreyn, 2016). Children that had a high level of reactivity were more prone to get sick or injured than those with a low reactivity, in stressful situations at home or at school and also in situations with a normal level of stress (Boice et al., 1995).
Aron, Aron and Davies (2005) showed that sensory processing sensitivity and unfavorable environmental childhood conditions lead to negative affectivity that can also lead to shyness in adulthood. This fear of negative evaluations from others in social interactions creates discomfort and a wish to limit this interactions, as well as anxiety and depression.
Liss, Timmel, Baxley and Killingsworth (2005) showed that sensory processing sensitivity was correlated with excessive parental protection. Parents that recognized their children’s sensitivity took over their tasks, leaving them without responsabilities and strengthening their perception of sensibility.
Taking into account all this information about the intense experiences of highly sensitive children and the effects that these experiences have on their activities, it is important that this innate trait could be identified from early ages, as it could become a protective factor, but also a risk factor for emotional problems and maladaptative behaviors for the adult period. As it was shown, both familial and scholar environments have contributions for the optimal development of the children, which implies the cooperation between parents and teachers. The people who interact with highly sensitive children should be able to properly identify them in order to be able to support them emotionally and to adapt the environmental conditions accordingly to their capacities of processing stimuli at a level that is not overwhelming for them.
References
Acevedo, B., Aron, E., Aron, A., Sangster, M., Collins, N., & Brown, L. (2014). The highly sensitive brain: an fMRI study of sensory processing sensitivity and response to others’ emotions. Brain And Behavior, 4(4), 580-594. doi: 10.1002/brb3.242
Acevedo B., Aron E., Pospos S., Jessen D. (2018). The functional highly sensitive brain: a review of the brain circuits underlying sensory processing sensitivity and seemingly related disorders. Phil. Trans. R. Soc. B 373: 20170161. http://dx.doi.org/10.1098/rstb.2017.0161
Aron A., Ketay S., Hedden T., Aron E.N., Rose M.H., Gabrieli J.D.E. (2010). Temperament trait of sensory processing sensitivity moderates cultural differences in neural response. Social cognitive and affective neuroscience 5, 2-3, 219-226. https://doi.org/10.1093/scan/nsq028
Aron, E. (2004). The highly sensitive child.
Aron, E. N. (2010). Psychotherapy and the highly sensitive person. New York: Routledge
Aron, E., & Aron, A. (1997). Sensory-processing sensitivity and its relation to introversion and emotionality. Journal Of Personality And Social Psychology, 73(2), 345-368. doi: 10.1037//0022-3514.73.2.345
Aron, E., Aron, A., & Davies, K. (2005). Adult Shyness: The Interaction of Temperamental Sensitivity and an Adverse Childhood Environment. Personality And Social Psychology Bulletin, 31(2), 181-197. doi: 10.1177/0146167204271419
Aron, E., Aron, A., & Jagiellowicz, J. (2012). Sensory Processing Sensitivity. Personality And Social Psychology Review, 16(3), 262-282. doi: 10.1177/1088868311434213
Boice, W. T., Chesney, M., Alkon, A., Tschann, J. M., Adams, S., Chesterman, B., et al. (1995). Psychobiologic reactivity to stress and childhood respiratory illnesses: Results of two prospective studies. Psychosomatic Medicine, 57, 411-422.
Belsky, J., & Pluess, M. (2013). Beyond risk, resilience, and dysregulation: Phenotypic plasticity and human development. Development And Psychopathology, 25(4pt2), 1243-1261. doi: 10.1017/s095457941300059x
Boterberg, S., & Warreyn, P. (2016). Making sense of it all: The impact of sensory processing sensitivity on daily functioning of children. Personality and Individual Differences, 92, 80-86. http://dx.doi.org/10.1016/j.paid.2015.12.022
Dunn, W. (2001). The sensations of everyday life: Empirical, theoretical, and pragmatic considerations. The American Journal of Occupational Therapy, 55(6), 608–620. http://dx.doi.org/10.5014/ajot.55.6.608.
Jagiellowicz, J., Xu, X., Aron, A., Aron, E., Cao, G., Feng, T., & Weng, X. (2010). The trait of sensory processing sensitivity and neural responses to changes in visual scenes. Social Cognitive And Affective Neuroscience, 6(1), 38-47. doi: 10.1093/scan/nsq001
Jones, W.H., Cheek, J.M., Briggs, S.R., editors (1986). Shyness: Perspectives on Research and Treatment. New York: Plenum
Kagan, J. (1994). Galen’s prophecy: Temperament in human nature. New York: Basic Books
Kim, S., & Kochanska, G. (2012). Child Temperament Moderates Effects of Parent-Child Mutuality on Self-Regulation: A Relationship-Based Path for Emotionally Negative Infants. Child Development, 83(4), 1275-1289. doi: 10.1111/j.1467-8624.2012.01778.x
Liss, M., Timmel, L., Baxley, K., & Killingsworth, P. (2005). Sensory processing sensitivity and its relation to parental bonding, anxiety, and depression. Personality And Individual Differences, 39(8), 1429-1439. doi: 10.1016/j.paid.2005.05.007
Patterson, C.M., Kosson, D.S., Newman, J.P. (1987). Reaction to punishment, reflectivity, and passive-avoidance learning in extroverts. Journal of Personality and Social Psychology, 52, 565–75.
Pluess, M. (2015). Individual Differences in Environmental Sensitivity. Child Development Perspectives, 9(3), 138-143. doi: 10.1111/cdep.12120
Pluess, M., & Belsky, J. (2010). Differential susceptibility to parenting and quality child care. Developmental Psychology, 46(2), 379-390. doi: 10.1037/a0015203
Roisman, G., Newman, D., Fraley, R., Haltigan, J., Groh, A., & Haydon, K. (2012). Distinguishing differential susceptibility from diathesis–stress: Recommendations for evaluating interaction effects. Development And Psychopathology, 24(02), 389-409. doi: 10.1017/s0954579412000065
Sih, A., Bell, A.M. (2008). Insights for behavioral ecology from behavioral syndromes. In: Brockmann, H.J., Roper, T.J., Naguib, M., WynneEdwards, K.E., Barnard, C., Mitani, J., editors. Advances in the Study of Behavior, Vol. 38, San Diego: Elsevier Academic Press, pp. 227–81
Wolf, M., van Doorn, G. S., & Weissing, F. J. (2008). Evolutionary emergence of responsive and unresponsive personalities. PNAS Proceedings of the National Academy of Sciences of the United States of America, 105(41), 15825-15830. http://dx.doi.org/10.1073/pnas.0805473105
Disclaimer
This article has been published in the Journal of Clinical Psychology and Psychotherapy, issue no 5-6, 2018, on the www.expertpsy.ro website and it was presented in the Conference ASISTENȚA LOGOPEDICĂ: ACTUALITATE ȘI ORIZONTURI, at Chișinău, 22-23 November 2018 and it was posted on the blog with the consent of the authors, co-organizing the E-MOTION project.
Authors

Armand Veleanovici, PhD
He has a PhD in psychology and he is a supervisor and trainer in clinical psychology, psychological counseling, and a trained psychotherapist, also having a degree in juridic sciences. He has been concerned about child abuse and neglect even before getting his degree in psychology and since 2006 he has been working in the system of child protection.

Laura Mat
She is a clinical psychologist, training to become a psychotherapist and studying Health Psychology as her masters’ degree curricula. She has interacted with both typical children and children with neurodevelopmental disorders, during volunteering programs in NGOs and a hospital.
This Post Has 810 Comments
Definitely consider that that you said. Your favorite justification appeared to be at the web the easiest factor to take into account of. I say to you, I definitely get annoyed at the same time as folks think about issues that they plainly do not realize about. You controlled to hit the nail upon the top and defined out the entire thing without having side effect , people can take a signal. Will likely be back to get more. Thanks| а
Thanks for sharing your info. I really appreciate your efforts and I am waiting for your further post thank you once again.| а
Amazing! Its genuinely awesome piece of writing, I have got much clear idea on the topic of from this paragraph.| а
If you are going for best contents like I do, only pay a visit this website everyday because it provides feature contents, thanks| а
Hey there, You’ve done an incredible job. I’ll definitely digg it and personally recommend to my friends. I am confident they will be benefited from this website.| а
Hi! Quick question that’s totally off topic. Do you know how to make your site mobile friendly? My blog looks weird when browsing from my iphone 4. I’m trying to find a template or plugin that might be able to correct this issue. If you have any suggestions, please share. Many thanks!| а
Thanks designed for sharing such a good opinion, article is fastidious, thats why i have read it completely| а
I’m not that much of a online reader to be honest but your blogs really nice, keep it up! I’ll go ahead and bookmark your website to come back in the future. Many thanks| а
I was wondering if you ever considered changing the layout of your website? Its very well written; I love what youve got to say. But maybe you could a little more in the way of content so people could connect with it better. Youve got an awful lot of text for only having one or two images. Maybe you could space it out better?| а
I would like to thank you for the efforts you have put in writing this website. I’m hoping to see the same high-grade content from you in the future as well. In truth, your creative writing abilities has encouraged me to get my very own site now ;)| а
Awesome issues here. I am very satisfied to see your post. Thank you so much and I am looking forward to contact you. Will you please drop me a mail?| а
Aw, this was an incredibly good post. Finding the time and actual effort to create a very good article… but what can I say… I procrastinate a whole lot and never seem to get anything done.| а
whoah this blog is great i love studying your articles. Keep up the good work! You recognize, many individuals are hunting round for this information, you could help them greatly. | а
For latest news you have to pay a quick visit world-wide-web and on web I found this website as a most excellent site for most recent updates.| а
An impressive share! I have just forwarded this onto a coworker who had been doing a little research on this. And he actually bought me lunch because I found it for him… lol. So let me reword this…. Thank YOU for the meal!! But yeah, thanks for spending the time to discuss this topic here on your web page.| а
I’ve been browsing online more than 4 hours today, yet I never found any interesting article like yours. It’s pretty worth enough for me. Personally, if all site owners and bloggers made good content as you did, the net will be much more useful than ever before.| а
This site was… how do I say it? Relevant!! Finally I have found something which helped me. Thanks a lot!| а
I visited several web sites but the audio feature for audio songs existing at this site is genuinely marvelous.| а
Great goods from you, man. I’ve understand your stuff previous to and you’re just too fantastic. I actually like what you’ve acquired here, certainly like what you are saying and the way in which you say it. You make it entertaining and you still take care of to keep it sensible. I can not wait to read far more from you. This is actually a great website.| а
Pretty component to content. I just stumbled upon your site and in accession capital to claim that I get in fact loved account your blog posts. Any way I’ll be subscribing to your feeds and even I achievement you get right of entry to constantly quickly.| а
Awesome post.| а
Hi, i think that i saw you visited my weblog so i came to “return the favor”.I am attempting to find things to enhance my site!I suppose its ok to use a few of your ideas!!| а
I needed to thank you for this wonderful read!! I absolutely loved every little bit of it. I’ve got you saved as a favorite to check out new stuff you post…| а
Heya i’m for the primary time here. I found this board and I find It truly helpful & it helped me out much. I hope to give something back and help others such as you aided me.| а
I’m amazed, I have to admit. Rarely do I come across a blog that’s equally educative and engaging, and without a doubt, you’ve hit the nail on the head. The issue is something that too few people are speaking intelligently about. I’m very happy I stumbled across this in my search for something relating to this.| а
Remarkable! Its truly awesome article, I have got much clear idea regarding from this article.| а
I’ve been browsing online more than 2 hours today, yet I never found any interesting article like yours. It is pretty worth enough for me. In my view, if all site owners and bloggers made good content as you did, the internet will be much more useful than ever before.| а
These are genuinely enormous ideas in about blogging. You have touched some good factors here. Any way keep up wrinting.| а
I pay a quick visit everyday some websites and blogs to read articles, but this website gives feature based writing.| а
Great post. I used to be checking continuously this blog and I’m inspired! Very helpful info particularly the ultimate section 🙂 I care for such info a lot. I used to be seeking this certain info for a very lengthy time. Thank you and good luck. | а
What’s up, its pleasant post concerning media print, we all be familiar with media is a enormous source of data.| а
Appreciation to my father who shared with me on the topic
of this website, this website is truly amazing.
Useful info. Fortunate me I discovered your website by chance, and I’m surprised why this accident didn’t happened in advance! I bookmarked it.| а
Hello There. I found your blog the use of msn. That is a very well written article. I’ll make sure to bookmark it and return to read extra of your useful information. Thank you for the post. I will definitely comeback.| а
Admiring the persistence you put into your blog and in depth information you offer. It’s great to come across a blog every once in a while that isn’t the same old rehashed information. Wonderful read! I’ve bookmarked your site and I’m adding your RSS feeds to my Google account.| а
Hi! Quick question that’s completely off topic. Do you know how to make your site mobile friendly? My blog looks weird when viewing from my apple iphone. I’m trying to find a template or plugin that might be able to resolve this issue. If you have any suggestions, please share. Thanks!| а
I’m more than happy to uncover this web site. I need
to to thank you for ones time due to this fantastic read!!
I definitely enjoyed every little bit of it and I
have you bookmarked to see new information on your
website.
I’ve been surfing on-line greater than 3 hours nowadays, yet I never found any fascinating article like yours. It is pretty value enough for me. In my opinion, if all site owners and bloggers made excellent content as you probably did, the net will probably be much more useful than ever before.| а
It’s an awesome paragraph in support of all the web viewers; they will take advantage from it I am sure.| а
Saved as a favorite, I like your website!| а
An impressive share! I’ve just forwarded this onto a friend who has been doing a little homework on this. And he in fact ordered me dinner due to the fact that I discovered it for him… lol. So let me reword this…. Thanks for the meal!! But yeah, thanx for spending some time to talk about this topic here on your web site.| а
Hello my family member! I wish to say that this article is amazing, nice written and include approximately all significant infos. I’d like to see extra posts like this .| а
First of all I want to say excellent blog! I had a quick question that I’d like to ask if you don’t mind. I was interested to find out how you center yourself and clear your head before writing. I’ve had a tough time clearing my mind in getting my ideas out there. I truly do enjoy writing but it just seems like the first 10 to 15 minutes are lost simply just trying to figure out how to begin. Any ideas or hints? Appreciate it!| а
I’m gone to tell my little brother, that he should also go to see this blog on regular basis to obtain updated from hottest information.| а
Great blog here! Also your site quite a bit up very fast! What host are you the use of? Can I get your affiliate link on your host? I desire my site loaded up as fast as yours lol| а
Hey! Do you use Twitter? I’d like to follow you if that would be ok. I’m undoubtedly enjoying your blog and look forward to new posts.| а
Please find Twitter link: https://twitter.com/EmotionHsp
I really like your blog.. very nice colors & theme. Did you make this website yourself or did you hire someone to do it for you? Plz reply as I’m looking to design my own blog and would like to know where u got this from. thanks| а
I like the valuable info you provide in your articles. I’ll bookmark your weblog and check again here regularly. I am quite certain I’ll learn lots of new stuff right here! Best of luck for the next!| а
Wow, that’s what I was seeking for, what a data! existing here at this blog, thanks admin of this site.| а
Contatta per scadenza offerta Enel Al mio rifiuto contatto Enel e mi confermano
che non ne sanno nulla Conoscono i miei dati,persino la domiciliazione bancaria,denunciati!