What happens in a mind that can't 'see' mental images

People report strikingly different abilities to form mental images, from complete aphantasia (no voluntary “mind’s eye”) to hyper‑vivid visualization, raising questions about how much our inner experience varies and how it shapes memory, learning, and emotion. Commenters compare how they read, dream, navigate, do math, and recall trauma without imagery, debate whether aphantasia is a disorder or simply a cognitive style, and point to emerging research using brain imaging and behavioral tests that suggests these differences are real rather than just linguistic. Others explore whether visualization can be trained through drawing, meditation, or psychedelics, and note similar spectra for inner speech, sound, and other senses.

Range of Inner Experience

  • Commenters describe a wide spectrum from complete lack of visual imagery (“only abstract tags or relations”) to vivid, almost AR‑like mental scenes.
  • Many stress that “picturing” is not like a hallucination or literal overlay on vision; it’s a separate internal channel that can be more or less vivid.
  • Several say they long assumed phrases like “mind’s eye” and “counting sheep” were metaphors until realizing others literally visualize.
  • Some report rich visual dreams but no voluntary imagery when awake; others have weak or no imagery even in dreams.

Dreaming, Memory, and Reading

  • Aphantasic users often report:
    • Poor autobiographical/episodic memory but strong recall of abstract facts or causal relations.
    • Reading as conceptual rather than cinematic; lush visual description is “noise,” while ideas, plot, and character arcs remain engaging.
    • Difficulty relating to complaints like “the movie didn’t match how I imagined the character.”
  • Others with strong imagery still note that imagined scenes usually don’t evoke the same emotional reward as real perception.

Functioning, Strengths, and Difficulties

  • Reported strengths: abstract reasoning, spatial or structural thinking without “pictures,” mental modeling of systems, navigation via relational maps, math/physics intuition, chess or programming via nonvisual representations.
  • Reported difficulties: decorating or layout planning without external tools, “mind palace” techniques, drawing from imagination, trauma processing (for some) or, conversely, reduced emotional burden (for others).

Training, Drugs, and Meditation

  • Several say psychedelics or high‑dose THC transiently “unlock” vivid imagery.
  • Others report lasting improvements in visualization from intensive meditation (e.g., retreats, kasina practices) or from sustained drawing/creative work.
  • One thread links possible nutrient (B‑vitamin) deficiencies to weak imagery; others are skeptical or nonresponsive.

Skepticism and Measurement

  • Some doubt whether aphantasia is more than linguistic confusion about “seeing,” likening it to debates on religious or mystical experience.
  • Others point to studies mentioned in the article and in links: differences in brain activation, objective imagery measures (e.g., pupil response), and behavioral tasks as evidence it’s not purely semantic.
  • There is disagreement about prevalence; self‑reports online may vastly exceed lab‑verified cases.

Other Modalities

  • Similar spectra are reported for:
    • Inner speech (from constant narrative to almost none).
    • Auditory imagery (strong “mind’s ear” vs silence).
    • Tactile, taste, and smell imagery, with some unable to “recreate” flavors or scents at all.