ASKiIMAN™ NEXUS / PSYCHOLOGY
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The Sensory Gate

Sensation · Perception · How the World Enters the Mind

The Construction of Experience

How does physical energy become conscious experience, and how does the brain construct a meaningful representation of the world? The mind does not simply receive a perfect duplicate of reality. It detects, translates, organizes, and infers to build the universe you experience.

EXTERNAL WORLD → PHYSICAL ENERGY → SENSORY RECEPTORS → TRANSDUCTION → NEURAL SIGNAL → SENSATION → PERCEPTION → ORGANIZED EXPERIENCE → MEANING

The Receptor Matrix

Taxonomy of Sensation & Perception

TAXONOMY A

Sensation & Transduction

  • NODE 03: Physical Energy (Light, Sound, Pressure).
  • NODE 04: Transduction: Conversion of energy into neural signals.
  • NODE 07: Sensory Adaptation (Fading of stable stimuli).
TAXONOMY B

Psychophysics

  • NODE 05: Absolute & Difference Thresholds (JND).
  • NODE 44: Weber's & Fechner's Laws.
  • NODE 06: Signal Detection Theory (Hits vs False Alarms).
TAXONOMY C

Vision

  • NODE 08: Light waves & Eye Optics.
  • NODE 09: Retina (Rods for low light, Cones for colour).
  • NODE 10 & 12: Colour theories & Depth perception (Binocular cues).
TAXONOMY D

Hearing

  • NODE 14: Sound (Frequency/Pitch, Amplitude/Loudness).
  • NODE 15: Cochlea, Hair cells & Auditory Transduction.
  • NODE 16: Sound Localization.
TAXONOMY E

Body Senses

  • NODE 17: Somatosensation (Pressure, Temp).
  • NODE 18: Pain & Gate-control theory.
  • NODE 21 & 22: Vestibular (Balance) & Proprioception.
TAXONOMY F

Chemical Senses

  • NODE 19: Taste (Sweet, Sour, Salty, Bitter, Umami).
  • NODE 20: Smell (Olfaction) & Memory links.
  • Lock-and-key chemical transduction.
TAXONOMY G

Perceptual Organization

  • NODE 23: Gestalt Principles (Proximity, Closure, Similarity).
  • NODE 24: Figure-Ground relationships.
  • NODE 25 & 26: Perceptual Constancies & Pattern Recognition.
TAXONOMY H

Interpretation

TOP-DOWN
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BOTTOM-UP
  • NODE 28: Bottom-up (Data-driven) vs Top-down (Knowledge-driven).
  • NODE 27 & 29: Context, Expectations, and Perceptual Set.
TAXONOMY I

Illusions

  • NODE 30: Misinterpretation of a real stimulus.
  • NODE 31: Ambiguous & Reversible figures.
  • Crucial: Illusion ≠ Hallucination.
TAXONOMY J

Multisensory Integration

  • NODE 35: Brain combines vision, hearing, and touch into one experience.
  • NODE 36: Cross-modal illusions (e.g., McGurk effect).
  • Sensory conflict resolution.
TAXONOMY K

Body & Self

  • NODE 34: Body schema and Body image.
  • Sense of Ownership and Agency.
  • Multisensory integration builds the self-model.
TAXONOMY L

Development & Culture

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  • NODE 38: Experience-dependent refinement & critical periods.
  • NODE 37: Cultural filters and learned categories.
  • NODE 42: Individual differences in perception.
TAXONOMY M

Perception as Construction

  • NODE 39 & 40: The brain does not receive a perfect copy of the world.
  • NODE 41: Reality vs Representation.
  • NODE 48: The Perception-Action loop.

Core Distinctions

Sensation vs. Perception

Sensation is your eye detecting a specific wavelength of light (Detecting data). Perception is your brain understanding that the light means a "Red Stop Sign" (Interpreting meaning).

Illusion vs. Hallucination

An illusion is a misinterpretation of a real physical stimulus (e.g., a straight stick looking bent in water). A hallucination is perceiving something when no external physical stimulus exists.

Bottom-Up vs. Top-Down

Bottom-Up builds a picture strictly from raw sensory details. Top-Down uses your prior knowledge and expectations to guess or fill in the blanks before all the details arrive.

The Perceptual Loop

NODE 49: The continuous construction of reality.

PHYSICAL ENERGY
↓ Transduction
NEURAL SIGNALS (SENSATION)
↓ Organization
INTERPRETATION (PERCEPTION)
↓ Focus
ATTENTION
↓ Interaction
ACTION
↓
↺ NEW SENSORY INPUT
Proceed to REALM 03 → THE ATTENTION ENGINE