Expressive Containers for Suppressed Feelings

• Expressive containers are formal, physical, or digital systems that map complex suppressed emotions to tangible design elements using metaphor and structured modalities.
• They integrate multimodal interactions, algorithmic emotion mappings, and ritualized processes to safely transform latent affect into communicable experiences.
• Empirical research highlights their significance in therapy, social support, and creative expression, emphasizing safety, cultural adaptivity, and scalable design.

Expressive containers for suppressed feelings are formal, physical, or digital constructs that support the externalization, containment, modulation, and sharing of intensely felt or difficult-to-verbalize internal states. These containers, grounded in theory and rigorously evaluated across a spectrum of psychological, sociotechnical, and HCI paradigms, span metaphor-rich environments, multimodal creativity tools, structured writing protocols, specialized communication platforms, and embodied or art-based mediums. Across settings from therapy to online communities, expressive containers act as transformation media, enabling individuals to render latent emotional states into actionable, shareable, and ultimately more processable forms.

1. Conceptual Foundations and Formal Models

Expressive containers are predicated on the need to address affect states that are not readily translatable into propositional, discursive language. They are most effective when mapped to a user’s specific set of suppressed or abstract feelings $F = \{f_1, ..., f_n\}$ via metaphor, medium, or activity:

• In MetaphorChat, a pipeline formalism defines two core mappings:

$$\phi: F \to M, \quad \theta: M \to \mathcal{P}(E), \quad \Psi(f) = (\theta \circ \phi)(f)$$

where $M$ is a set of metaphors (boat, train, weather, etc.) and $E$ is a set of design elements (graphics, sound, interaction modalities) (Ji et al., 10 Feb 2025).

• Suppression and expression can be encoded and analyzed via affective networks, as in Joseph et al.’s cognitive network models for online diaries and suicide notes, which reconstruct semantic frames around “feel” and quantitatively profile associated emotions (Joseph et al., 2021).
• In embodied contexts, vectorized models such as the Expressive Therapies Continuum define media → affect mappings:

$$v_m = (a_{KS}(m), a_{PA}(m), a_{CS}(m), a_{Cr}(m)), \quad V = \sum_{i=1}^n w_i v_{m_i}, \quad T = F(V_1, V_2, V_3, V_4)$$

with $T$ representing therapeutic effect across kinesthetic, affective, symbolic, and integrative domains (Liu et al., 2024).

Expressive containers balance the dual functions of surfacing hidden emotions and permitting their safe modulation or even continued suppression, depending on user needs and the form of the container.

2. Modalities and Design Paradigms

The typology of expressive containers can be systematized as follows:

Container Modality	Mechanism	Example System/Paper
Metaphoric digital space	Scene-based metaphor; multi-sensory affordance	MetaphorChat (Ji et al., 10 Feb 2025)
Networked venting channel	Semi-anonymous peer space	Discord #vent (Oladeji et al., 2024)
Self-guided writing	Scaffolded Q&A for reflection	RQA (Bhattacharjee et al., 2021)
Embodied/VR journaling	Somaesthetic motion, audio canvas	Reflective Motion (Yin et al., 22 Jan 2026)
Unsent messages	Ritualized note-taking, decision friction	The Words That Can’t Be Shared (Yin et al., 19 Jan 2026)
Multimaterial/AI arts	Kinesthetic/symbolic hybridization	Generative storymaking (Liu et al., 2024)
Visual generative prompts	AI images as narrative/metaphoric triggers	MentalImager (Zhang et al., 2024)

Design principles emerging from the literature include:

• Metaphor concreteness, embodied affordances, and multi-modality (Ji et al., 10 Feb 2025).
• Explicit boundary signaling and layered privacy/safety affordances for high-emotion or stigmatized content (Oladeji et al., 2024, Yin et al., 19 Jan 2026).
• Scaffolded progression from sensation/perception to symbol and narrative, using both analog and AI-enhanced materials (Liu et al., 2024).
• Ritualization and temporalization features (burn, fade, reminder) to modulate the psychological impact of suppressed-to-expressed transitions (Yin et al., 19 Jan 2026).

3. Container Mechanics and User Interaction

Implementations span interactive systems, journaling protocols, and therapeutic tools:

• MetaphorChat employs Unity 3D, Photon PUN2, custom graphics, and real-time auditory feedback, allowing co-occupancy of metaphorical scenes (boat/train), coordinated through functions mapping emotion to metaphor to experience (Ji et al., 10 Feb 2025).
• Vent channels enforce channel-level boundaries, expectation setting (“peer support, not therapy”), and rapid, low-stakes response (emoji, one-click reactions) to support both disclosure and ephemeral containment (Oladeji et al., 2024).
• Reflective Question Activities (RQA) implement a deterministic question tree mapping Situation → Thoughts → Feelings → Behaviors → Challenge → Alternatives, with evidence for brief structured intervention efficacy (ΔStress = –0.7, completion ≈ 9 min) (Bhattacharjee et al., 2021).
• Embodied journaling in VR removes linguistic scaffolding entirely, presenting the user with an avatar and infinite canvas, with affect transfer observable in gesture, stance, and vocal tone (Yin et al., 22 Jan 2026).
• Unsent messages organize messages in containers $$C_p = \{ m | m.platform = p, m.sent = \text{false} \}$$, with design interventions such as burn/fade rituals, temporally delayed reminders, and “forced send” for decision-closure nudges (Yin et al., 19 Jan 2026).
• MentalImager leverages a diffusion model conditioned on extracted emotion/keyword prompt vectors to generate metaphorically resonant images, empirically improving self-disclosure clarity (+0.80 on 7-pt scale) and peer empathy (+0.66) in online mental health disclosure (Zhang et al., 2024).

4. Comparative Effects Across Contexts and Populations

The empirical landscape demonstrates both the efficacy of expressive containers and their context sensitivity:

• Textual Containers: Cognitive network analysis shows diaries (Reddit forums) act as “open containers” with explicit, polychromatic emotional disclosure—trust and sadness co-exist; suicide notes act as “closed containers”—suppression of affective vocabulary, emphasis on directive or relational language (Joseph et al., 2021).
• Peer Support Dynamics: Discord vent channels’ boundedness is critical to perceived safety; commiseration and validation dominate, but expectation mismatches (silent responses, unwanted advice) reveal the functional and affective boundaries of the container (Oladeji et al., 2024).
• Therapeutic and Family Settings: Multimodal expressive containers—whether physical (clay, collage, paint) or AI-powered (Midjourney, token printouts)—enable re-projection and iterative transformation of suppressed affect (cf. the ETC model) (Liu et al., 2024). Emotional work is deepened when containers allow movement between raw sensation, metaphoric form, and narrative assembly.
• Embodied and Non-linguistic Modalities: VR-based embodied journaling bypasses deliberative linguistic processing, surfacing unfiltered or repressed emotions through movement, then deferring reflection to a secondary staged review. Writing affords more immediate in-the-moment reflection; VR enhances post-hoc, self-distanced insight (Yin et al., 22 Jan 2026).

5. Design Implications, Metrics, and Limitations

Studies across modalities converge on several actionable heuristics and process constraints:

• Safety, Boundary, and Ritual: Features such as ephemeral message deletion, unsendability, anonymous posting, and guided burn/fade actions are essential for supporting honest expression with minimal risk (Yin et al., 19 Jan 2026, Oladeji et al., 2024).
• Balance of Abstraction and Concreteness: Overly realistic metaphors risk distraction; excessive abstraction impedes empathy and mutual understanding (Ji et al., 10 Feb 2025). Harmonization of graphics, embodiment, and sound must match the targeted emotional tone.
• Scalability and Adaptivity: Algorithmic supports, including emotion classification, prompt selection, sentiment-informed metaphor suggestion, and multi-platform deployment (web, SMS, VR), enable personalization and integration into daily life (Zhang et al., 2024, Bhattacharjee et al., 2021).
• Evaluation: Metrics span traditional psychometrics (stress reduction, utility, reflection, PANAS, MEQ), network/semantic analysis ($z$-valence of emotional petals, topic prevalence), and qualitative thematic coding (projection, ritual, distancing).
• Limitations: Sample biases (demographics, digital literacy), prototype fidelity (mockups vs. deployables), effects on negative cycles or rumination, and domain generalizability are recurrent caveats. There is a warranted need for longitudinal and cross-cultural work.

6. Future Directions and Open Challenges

The literature anticipates several future trajectories:

• Algorithmic Metaphor Recommendation and Dynamic Container Construction: Pipeline integration of ML-based emotion/sentiment extraction with container generation, adapting both metaphor banks and interaction modes in real-time (Ji et al., 10 Feb 2025).
• Cultural Adaptation and Personalization: Customization of metaphor sets, container aesthetics, and safety features to account for local norms of self-disclosure, stigma, and communicative practice (Liu et al., 2024, Ji et al., 10 Feb 2025).
• Therapeutic/Clinical Integration: Hybrid human–AI workflow for early-warning detection, personalized prompts, and regulated escalation for high-risk users in online support settings (Joseph et al., 2021).
• Multi-User, Multi-Modal Containers: Extension from dyads to group interactions, integration with AR/VR, and physiological data streams (e.g., heart rate modulation of metaphorical weather in MetaphorChat) (Ji et al., 10 Feb 2025).
• Ethical and Safety Considerations: Fine-tuned balance between catharsis and avoidance of harmful reinforcement; real-time filtering and crisis-resource embedding for misuse or accidental triggering (Zhang et al., 2024, Yin et al., 19 Jan 2026).
• Empirical Elucidation of Reflection/Venting Trade-offs: Optimal design of nudge and ritual mechanisms to avoid rumination and capitalize on the adaptive value of both suppression and expression, as modulated across time and personal trajectory (Bhattacharjee et al., 2021, Yin et al., 22 Jan 2026).

Expressive containers for suppressed feelings constitute a rapidly diversifying domain, with evolving formal models, empirical validation across platforms and populations, and a growing toolkit of design primitives and metrics. Their development is increasingly situated at the interface of affective computing, therapeutic intervention, and critical awareness of social context and individual need.