
Social media has change into integral to our each day lives, shaping the best way we work together and search validation from others. Because the introduction of the ‘like’ button on Fb in 2009, customers have obtained ‘likes’ and ‘hearts’ as indicators of approval. This straightforward software allows customers to offer and obtain fast, quantifiable suggestions (Oremus, 2022). Initially symbolised by the long-lasting ‘thumbs-up’ icon, it has been broadly adopted by different platforms, akin to Instagram, the place customers faucet a coronary heart to indicate their appreciation.
The gathered variety of likes on a submit can increase our confidence, foster a way of belonging, and hold us coming again for extra (Burrow & Rainone, 2017; Smith et al., 2021). Nonetheless, the validation from these little hearts may encourage extreme social media use, and when the likes cease coming, it may well depart us feeling rejected and decrease our vanity (Timeo et al., 2020). Adolescence is a developmental interval characterised by heightened sensitivity to each rewards and rejection (Quarmley et al., 2019; Shulman et al., 2016). This leaves the query of whether or not adolescents, extra so than adults, are notably delicate to receiving this sort of social suggestions on social media.
Taking a computational method, this latest research by Ana da Silva Pinho and colleagues (2024), revealed in Science Advances, seeks to reply this query utilizing a complete set of strategies and knowledge.

No likes? The researchers investigated how receiving extra or fewer likes influenced on-line engagement and temper.
Strategies
The researchers investigated sensitivity to social media suggestions throughout three research.
Examine 1 analysed Instagram hint knowledge from adolescents (ages 13 to 19) and adults (ages 30-39). The info, which was initially collected between 2014 – 2015, included 1.72 million Instagram posts from 7,718 adolescents and eight,895 adults. The info consisted of customers’ actions, such because the variety of posts, timestamps, and the variety of likes. The researchers constructed a computational mannequin to understanding on-line engagement. Based on this reinforcement studying mannequin, an individual’s on-line engagement, or how typically they submit on social media, operates as a operate of what number of likes they obtain: the extra likes, the earlier the individual will submit once more. The mannequin additionally incorporates the trouble value that’s concerned in posting, akin to opening the app and creating content material, and this may finally set a restrict to how typically somebody can submit.
Examine 2 employed a web based experiment mimicking Instagram, the place 92 adolescents (ages 16 to twenty) and 102 adults (ages 30 to 40) posted memes below a high-reward (receiving 28-34 likes per submit) and a low-reward (receiving 6-18 likes per submit) situation. Actual-time suggestions (likes) was seen for posted memes. The individuals’ temper was measured at three timepoints; earlier than the experiment, between the 2 situations, and after the experiment.
Examine 3 mixed historic Instagram hint knowledge, self-reports of social nervousness and problematic social media use, along with structural mind imaging knowledge. Magnetic resonance imaging (MRI) scans have been out there from 96 rising adults (ages 18-24). A computational studying mannequin was fitted to the Instagram hint knowledge to estimate studying charges.
Outcomes
Examine 1 – likes matter
Utilizing a big dataset of Instagram posts and making use of a computational studying mannequin, the researchers discovered that adolescents confirmed a 44% greater studying fee in comparison with adults. The upper studying fee amongst adolescents, referring to how rapidly people adapt their posting behaviour in response to likes obtained on Instagram, signifies that their social media engagement is extra strongly motivated by their response to social suggestions in comparison with adults. Opposite to the researchers’ speculation, the adolescents didn’t present a decrease effort value. As adolescents are regarded as digitally superior to adults, the researchers anticipated that adolescents’ posting behaviour would additionally replicate their decrease effort in posting, referring to opening the app and creating content material. In sum, adolescents’ social media posting behaviours appear to be extra strongly influenced by will increase and reduces within the variety of likes they obtain, in comparison with adults.
Examine 2 – likes have an effect on temper
Within the experimental research, evaluating conditions the place adults and adolescents obtained extra (high-reward) or fewer (low-reward) likes, the outcomes confirmed that adolescents displayed higher fluctuations of their temper after they skilled shifts in variety of likes obtained. Particularly, each teams of individuals skilled elevated constructive temper within the excessive reward situation, however the adolescents skilled higher temper declines after they began to obtain fewer likes. Adolescents additionally ended the experiment with a extra damaging temper in comparison with adults. The outcomes revealed no distinction within the time it took to submit (posting latency) and usually, adolescents posted much less often general. These findings have been impartial of self-reported problematic social media use or social nervousness ranges.
Examine 3 – mind areas
Within the third research, the researchers utilized an exploratory neuroimaging method. The individuals additionally supplied Instagram hint knowledge, with a median 5.74 years of use. The intention was to look at long-term results of social media use and social media suggestions on the mind. The research recognized a number of mind areas related to social suggestions sensitivity, all that are recognized to be essential for fundamental suggestions processing, together with the amygdala, ventral diencephalon, pallidum, and putamen. The amygdala, recognized for its key position in emotion processing, was additionally discovered to be related to social media sensitivity, social nervousness, and problematic media use.

Younger persons are thought of digitally superior to adults. Nonetheless, this didn’t affect posting behaviour. Extra so than adults, adolescents adjusted their on-line engagement primarily based on the variety of likes they obtained.
Conclusions
Total, the outcomes assist the speculation that adolescence is a developmental interval characterised by heightened sensitivity to social media suggestions, akin to likes. In comparison with adults, adolescents usually tend to regulate their posting behaviours primarily based on the variety of likes they obtain. This sensitivity can also be mirrored in higher temper fluctuations, with adolescents experiencing extra damaging temper adjustments after they obtain fewer likes. Structural mind imaging knowledge additional assist this discovering, displaying that particular mind areas, such because the amygdala, are concerned on this heightened sensitivity.
Strengths and limitations
A key energy of the research is its deal with developmental sensitivity by evaluating adults to adolescents, which has been highlighted as an essential perspective within the social media literature (Orben et al., 2022). One other energy is that the researchers utilized a extensive number of methodological approaches and knowledge sources, together with goal Instagram hint knowledge, experimental proof, and mind imaging knowledge. Collectively, this offers a multidimensional understanding of social suggestions throughout developmental levels.
The reliance on self-report measures of social media use and engagement has been a limitation of present analysis (Hodes & Thomas, 2021), which the present research overcomes. Additionally, fairly than specializing in broad conceptualisations of social media use (e.g., time spend on social media), the researchers zoom in on a particular facet of social media, specifically receiving likes on Instagram. A associated limitation is, nonetheless, that Instagram is a particular platform, and the generalisability of the outcomes to different platforms must be examined additional. Whereas the researchers chosen the platform primarily based on its reputation throughout adolescent and grownup populations, generational variations should still be current in the best way adolescents versus adults work together with the platform (e.g., what kind of content material they submit). Additionally, because the researchers spotlight themselves, though receiving likes is a key affordance throughout many social media platforms, different varieties of suggestions, akin to feedback or messages, might add to the complexity of real-world social media suggestions and needs to be investigated additional.
Personally, I discovered it a bit tough to realize a transparent understanding of the traits of the samples included within the research, impeding my skill to judge the generalisability of the outcomes to different populations and contexts. The researchers state that individuals have been recruited to the experimental research from English-speaking nations by way of social media, however I believe the research would have benefitted from a demographics desk for all of the samples included within the research. This might additionally assist make clear the distinct developmental intervals which might be investigated throughout the three research. It must also be famous, that whereas this research has added to the totality of the findings, the small pattern dimension (N < 100) included within the mind imaging research is proscribed with reference to generalisability.

Digital environments are advanced, and future analysis may have to think about the a number of methods one can obtain suggestions on social media platforms, together with messages and reactions.
Implications for observe
This research contributes to the social media literature by using a wide range of strategies to discover adolescents’ sensitivity to social media suggestions. The findings point out that adolescents are notably delicate to receiving extra or fewer likes on social media, suggesting that what number of likes they obtain can affect their posting exercise. Receiving fewer likes within the experimental situation was additionally related to stories of higher temper declines amongst adolescents.
The analysis offers a priceless step in understanding how younger persons are impacted by social media suggestions, however it stays unclear whether or not receiving extra or fewer likes is solely constructive or damaging. On one hand, the outcomes recommend that extra likes can result in elevated social media engagement, which can additional contribute to extreme use – a doubtlessly dangerous impact. Alternatively, fewer likes would possibly cut back posting engagement, which might be perceived as a constructive end result. The present research highlighted, nonetheless, that the latter can also be related to temper declines.
For me, one query that arises after studying the paper is how receiving social media suggestions would possibly affect different on-line behaviours. For instance, whereas the outcomes recommend that receiving extra likes will increase posting behaviour, may receiving fewer likes result in higher passive social media use, akin to scrolling by others’ profiles as an alternative of actively posting content material? A discount in posting behaviour doesn’t essentially equate to discount in general social media exercise.
For professionals working with adolescents, I believe a key takeaway is that youths’ sensitivity to rejection and social suggestions extends to the web world. Facilitating significant conversations about social media use, akin to discussing how likes, feedback, or messages affect their well-being and psychological well being, can present priceless alternatives to assist younger individuals in navigating digital environments.
One other sensible implication deriving from this research is the necessity for age-appropriate insurance policies and techniques within the design of social media platforms. One avenue highlighted by the researchers themselves is to scale back the emphasis on likes. For instance, Instagram permits customers to cover likes on their private accounts. Educating younger individuals about this and associated options may show useful in lowering the damaging results of social media use on their temper and behavior.

There’s a want for age-appropriate insurance policies and techniques within the design of social media platforms to assist cut back the damaging results of social media use on younger individuals’s temper and behavior.
Assertion of pursuits
No battle of pursuits to declare.
Hyperlinks
Main paper
da Silva Pinho, A., Céspedes Izquierdo, V., Lindström, B., & van den Bos, W. (2024). Youths’ sensitivity to social media suggestions: A computational account. Science Advances, 10(43), eadp8775. https://doi.org/10.1126/sciadv.adp8775
Different references
Burrow, A. L., & Rainone, N. (2017). What number of likes did I get?: Goal moderates hyperlinks between constructive social media suggestions and vanity. Journal of Experimental Social Psychology, 69, 232–236. https://doi.org/10.1016/j.jesp.2016.09.005
Hodes, L. N., & Thomas, Ok. G. F. (2021). Smartphone Display Time: Inaccuracy of self-reports and affect of psychological and contextual elements. Computer systems in Human Habits, 115, 106616. https://doi.org/10.1016/j.chb.2020.106616
Orben, A., Przybylski, A. Ok., Blakemore, S.-J., & Kievit, R. A. (2022). Home windows of developmental sensitivity to social media. Nature Communications, 13(1), 1649. https://doi.org/10.1038/s41467-022-29296-3
Oremus, W. (2022). 21. The Curse of the Superior Button. In T. Bosch (Ed.), “You Are Not Anticipated to Perceive This”: How 26 Strains of Code Modified the World (pp. 131–138). Princeton College Press. https://doi.org/10.1515/9780691230818-023
Quarmley, M. E., Nelson, B. D., Clarkson, T., White, L. Ok., & Jarcho, J. M. (2019). I Knew You Weren’t Going to Like Me! Neural Response to Precisely Predicting Rejection Is Related With Nervousness and Melancholy. Frontiers in Behavioral Neuroscience, 13, 219. https://doi.org/10.3389/fnbeh.2019.00219
Shulman, E. P., Smith, A. R., Silva, Ok., Icenogle, G., Duell, N., Chein, J., & Steinberg, L. (2016). The twin programs mannequin: Evaluation, reappraisal, and reaffirmation. Developmental Cognitive Neuroscience, 17, 103–117. https://doi.org/10.1016/j.dcn.2015.12.010
Smith, D., Leonis, T., & Anandavalli, S. (2021). Belonging and loneliness in our on-line world: Impacts of social media on adolescents’ well-being. Australian Journal of Psychology, 73(1), 12–23. https://doi.org/10.1080/00049530.2021.1898914
Timeo, S., Riva, P., & Paladino, M. P. (2020). Being preferred or not being preferred: A research on social-media exclusion in a preadolescent inhabitants. Journal of Adolescence, 80, 173–181. https://doi.org/10.1016/j.adolescence.2020.02.010