“Independent discharges of dopamine neurons (tonic or pacemaker firing) determine the motivation to respond to such cues. As a result of habitual intake of addictive drugs, dopamine receptors expressed in the brain are decreased, thereby reducing interest in activities not already stamped in by habitual rewards.”
From: Dopamine and Addiction | Annual Review of Psychology — https://www.annualreviews.org/doi/abs/10.1146/annurev-psych-...
----
Edit:
I'd like to add a couple more ideas, because what you're describing in your article is spot on, and I believe can be generalized past your own experience.
> Another angle that makes this ever more distressing is that my memory is very, very fallible ... I can confidently say that I've done nothing I said I would do there.”
Herbert Simon says: “In an information-rich world, the wealth of information means a dearth of something else: a scarcity of whatever it is that information consumes. What information consumes is rather obvious: it consumes the attention of its recipients. Hence, a wealth of information creates a poverty of attention”.
As an information-addict myself, I've been meditating a lot about this topic. During the past two years I've been researching it from a psychological perspective (And for that, I'm grateful to @ericd for this HN comment: https://news.ycombinator.com/item?id=24581016). I'll throw in some resources that I've came across during this journey, in case anyone finds them useful:
- Dr Gabor Mate: Addiction: https://www.youtube.com/watch?v=_-APGWvYupU
- Dr. Anna Lembke: Understanding & Treating Addiction | Huberman Lab Podcast: https://www.youtube.com/watch?v=p3JLaF_4Tz8
- The book “The Molecule of More” by by Daniel Z. Lieberman and Michael E. Long.
- The book “The Shallows” by Nicholas Carr.