Add new term: embed deictic stimulus BCT

[oleksiikartashovde-glitch]

Module: Behaviour Change Techniques
Suggested parent class: BCIO_007156 (add objects to the environment BCT)
Proposed label: embed deictic stimulus BCT

Definition: A behaviour change technique that places a stimulus with deictic
properties (pointing, directional, agent-like) in the intervention environment or
materials in order to direct participant attention and induce a pedagogical stance
toward intervention content.

Examples: placing a pointing figure adjacent to a health warning; using
directional asymmetry in visual design to orient attention toward key intervention
message; including eye-gaze images oriented toward target behaviour information;
using an arrow or hand gesture graphic to direct attention to a call to action.

Rationale: This BCT operates through the proposed mechanism of action through
deictic stimulus. It is distinct from standard environmental restructuring
(BCIO_050348) and adding objects to the environment (BCIO_007156) in that its
primary mechanism is attentional direction and automatic reduction of epistemic
vigilance rather than physical facilitation or impediment of behaviour. Deictic
stimuli activate the superior temporal sulcus (STS) and induce a pedagogical stance
in the recipient (Csibra & Gergely, 2009), increasing receptivity to intervention
content prior to conscious evaluation. This BCT is widely used in public health
communication and advertising but is not currently codeable in BCIO.

References:

• Csibra, G., & Gergely, G. (2009). Natural pedagogy. Trends in Cognitive Sciences, 13(4), 148–153.
• Frischen, A., Bayliss, A.P., & Tipper, S.P. (2007). Gaze cueing of attention. Psychological Bulletin, 133(4), 694–724.

Suggested label: new term