href="@public@vhost@g@gutenberg@html@files@17815@[email protected]#Page_38" tag="{http://www.w3.org/1999/xhtml}a">38-40: (a) confusion of Sense-impression, 40-44;
(b) misinterpretation of Sense-impression, 44; Passive and Active
misinterpretation, 44-46; Passive Illusions as organically and
extra-organically conditioned, 46-49.


CHAPTER IV.

ILLUSIONS OF PERCEPTION—continued.

A. Passive Illusions (a) as determined by the Organism.
Results of Limits of Sensibility:—Relation of quantity of Sensation to
that of Stimulus, 50-52; coalescence of simultaneous Sensations,
52-55; after-effect of Stimulation, 55, 56; effects of prolonged
Stimulation, 56-58; Specific Energy of Nerves, 58, 59; localization
of Sensation, 59-62; Subjective Sensations, 62-64.

Results of Variation of Sensibility:—Rise and fall of Sensibility, 64-67;
Paræsesthesia, 67, 68; rationale of organically conditioned Illusions,
68, 69.


CHAPTER V.

ILLUSIONS OF PERCEPTION—continued.

A. Passive Illusions (b) as determined by the Environment.
Exceptional Relation of Stimulus to Organ:—Displacement of organ, etc.,
70-72.

Exceptional Arrangement of Circumstances in the Environment:—Misinterpretation
of the direction and movement of objects, 72-75;
misperception of Distance, 75, 76; Illusions of depth, relief, and
solidity in Art, 77-81; Illusions connected with the perception of
objects through transparent coloured media, 82-84; visual transformation
of concave into convex form, 84-86; false recognition of
objects, 86, 87; inattention to Sense-impression in Recognition,
87-91; suggestion taking the direction of familiar recurring experiences,
91, 92.


CHAPTER VI.

ILLUSIONS OF PERCEPTION—continued.

B. Active Illusions.

Preperception and Illusion, 93-95.

Voluntary Preperception:—Choice of interpretation in the case of visible
movement, 95, 96; and in the case of flat projections of form,