Module 1-1 · Track 1 · INEMA.NCIA
Needs & Attention
What drives behavior and how attention is captured—needs, selective attention, and the addiction loop.
What this module covers
- Human Needs
- Selective Attention and the SRAA
- The Neuroscience of Addiction
1.Human Needs
Before talking about focus, it's worth asking a more ancient question: what motivates a person? Throughout the 20th century, several theories tried to map human needs and motivation. None is the final answer—each sheds light on one angle and leaves another in the shadows.1 Get to know them and build the vocabulary to understand the terrain where attention will later be contested.
The best-known is the Maslow’s Pyramid, which organizes needs into five levels—physiological, safety, social, esteem, and self-actualization. Its strength is clarity; its weakness is assuming we move up the pyramid in order, when in practice we pursue several levels at once. The Alderfer's ERG theory, reorganizes this into existence, relationships, and growth, and acknowledges precisely what Maslow’s model lacks: that people pursue needs in parallel, not in a sequence.
From workplace motivation to a state of flow
Other theories target specific contexts. The of Herzberg’s Two-Factor Theory, separates what truly motivates from what merely prevents dissatisfaction. The of Self-Determination bets on intrinsic motivation and three needs — autonomy, competence, and relatedness. McClelland talks about affiliation, power, and achievement; Vroom, in terms of expectancy, instrumentality, and valence— motivation as a calculation involving effort, performance, and reward.
It’s worth highlighting the Flow Theory: the state of total immersion in an activity that combines enjoyment and productivity. It appears when the challenge is balanced with skill — and it is difficult to achieve in environments full of distractions. Remember that last sentence: it’s the bridge to everything that comes next in this learning path.
▸ Going deeper: why no single theory is complete on its own optional
The happy path above is enough to follow along. This layer is for anyone who wants to understand why there are so many competing theories — and can be skipped without missing anything.
Each model began with a different question. Maslow and Alderfer ask which needs exist and how they are ordered. Herzberg and Self-Determination ask what motivates in the workplace. Vroom asks how the perceived reward becomes effort. That’s why they don’t cancel each other out: they address different things. Their common limitation—pointed out in several of them—is the weak empirical basis and the difficulty of measuring subjective needs in diverse contexts. The useful approach isn’t to choose the “right” theory, but to know which lens fits which situation.
2.Selective Attention and the SRAA
Your brain receives far more than it can notice. That’s why there’s a gatekeeper: the Ascending Reticular Activating System, or SRAA — a structure that regulates wakefulness and filters which stimuli reach the cortex, deciding at every moment what enters consciousness and what stays out.2
The scale of filtering is impressive. The brain is estimated to process around 400 billion bytes of information per second, but only about 2,000 bytes reach conscious awareness. The rest stays below the waterline. Without this filter, the overload would be total—and the criterion it uses to decide what gets through is, to a large extent, perceived relevance.
The red car is what you "program"
This is where the classic example comes from: when you want a red car, you start noticing red cars everywhere. The number of them in the world hasn't changed—what changed was your focus. Repeating thoughts, words, and intentions signals to the RAS that something matters, and it starts highlighting everything in the environment that relates to it. The dark side is symmetrical: repeating "it won't work" teaches the filter to confirm pessimism, sweeping the good out of view.
An honest caveat is in order. The popular idea that repeating a phrase exactly 21 times makes it of "vital interest" to the system lacks scientific support. Habit formation and selective perception are complex processes involving emotion, context, and frequency—and the exact mechanisms are still being studied in neuroscience. The effect of focus is real; the magic number isn’t.
Stop and predict
If SRAA highlights what you notice frequently, what happens when you spend hours a day scrolling through a feed designed to hold your attention?
See a possible answer
You train the filter to prioritize exactly these stimuli—and to notice more and more of the same. What you choose to repeat, the brain learns to highlight. That’s the topic of the next section: how this mechanism is deliberately exploited.
3.The Neuroscience of Addiction
Addiction isn’t a lack of willpower — it has a biological basis. The neuroscience of addiction studies how certain substances and behaviors hijack the brain circuits linked to reward, motivation, and self-control. This applies to drugs as well as behaviors: gambling, shopping, food, and, increasingly, social media.3
Three parts of the brain come into play. The reward system — nucleus accumbens and dopamine — is triggered when something feels good. The prefrontal cortex, the center of planning and impulse control, has reduced activity in addiction, which weakens the ability to resist. And amygdala with the hippocampus store strong emotional memories —the triggers that reignite desire much later.
Why social media works like a casino
Platforms were designed to trigger this system nonstop. The central engine is the intermittent variable reward: like a slot machine, sometimes the reward comes — a like, comment, notification — and sometimes it doesn't. Uncertainty is precisely what keeps you hooked, holding you in the cycle as you wait for the next dose of dopamine. Add to that FOMO of stories that disappear in 24 hours and the social validation that turns likes into a need.
The cost shows up over time. Excessive stimulation causes desensitization: ordinary content becomes boring, and the brain craves increasingly more intense doses — the same tolerance produced by chemical addiction. Away from the phone, withdrawal comes in the form of anxiety. The field concludes that the problem isn't just the user: it's how platforms exploit real vulnerabilities in the brain to maximize engagement.
▸ Going deeper: how to recalibrate the reward system optional
Optional layer — what the literature itself suggests for escaping the prison without demonizing the tool.
Almost every strategy attacks the trigger or the dose. Reducing notifications cuts the signals that trigger the cycle. Creating physical barriers—the phone away from the bed, set schedules—breaks automatic behavior. Replacing stimuli with activities that require real effort and presence (exercise, for example) helps recalibrate dopamine. Using the network intentionally, creating instead of just consuming, reduces the impact; and periods of digital detox give the reward system room to return to balance. The goal isn't total abstinence, but a relationship in which technology becomes a tool again.