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Table 1 The stimulation modules implemented in the enriched garden, their purpose and their description with activities

From: Enriched gardens improve cognition and independence of nursing home residents with dementia: a pilot controlled trial

Module

Purpose

Description (D) and activities with approximative time spent in activities (A)

1 - Vegetal sundial place

Cognition impairment

Temporo-spatial disorientation

D: On sunny days, the shadow projection of the patient gives him indication of daytime over a half circle multi-colour flowerbed—it is associated with a distribution of the same colors over different milestones throughout the garden pathway

A: Standing & measure day time and walking over colored milestones (2–5 min)

2 - Easel place

Cognition impairment

Emotional praxis

D: Free expression with a paintbrush over a rain washable canvas of instantaneous emotions that will remain as a garden land art expression. It will exercise motricity of superior members, cognitive stimulation and spatial representation

A: Painting with a brush in hand on a washable surface (5 min)

3 -Self-reflection place

Self-esteem

Mild depressive disorder

D: Interaction of reflection of the patient with mirrors distributed in a specific spot producing a magnified light and colour effects through pyramidal prisms with vegetal planted beds

A: Standing and interacting visually & mentally with the special scenery (5 min)

4 - Space-time place

Cognition impairment

Temporo-spatial disorientation

D: Architectural construction catching natural lights and producing special effects in its environment during the day

A: Standing or sitting and observing/interacting with the special light effects along the day created by sun rays (5 min)

5 -Sensory amplification

Sensitive stimulation

D: Pyramidal construction of tactile, olfactory and visual effects with a gradated selection of vegetal planting

A: Feeling the sensory gradation of this helicoidal pyramid and possibly modify planting (5–10 min)

6 - Wicker arch walkway

Cognition impairment

Praxis

D: Wicker arch constructed over the garden pathway with braiding and shadowing calming interaction

A: Braiding of wicker strands (3–5 min)

7 - Ground painting place

Cognition impairment

Praxis

D: A long vertical paintbrush moving along a cable via gravity produces colored paint traces over a specially designed surface as the patient walks while holding the brush handles.

A: Accompanying a cable suspended brush and leaving traces of painting on a special surface (3–5 min)

8 -Motricity place

Walking, exercising balance, prevention of falls

D: Different pathways between parallel bars for exercise on slopes, stairs and obstacles crossing

A: Crossing obstacles (2–3 min)

9 - Sounds and music place

Cognition impairment

Praxis

D: Different outdoor musical instruments with predesigned or free musical exercises

A: Playing alone or with others melodies on outdoor specific music instruments (5 min)

10 -Multi-materials place

Walking, exercising balance, prevention of falls, multisensory interaction

D: Special construction to experience differences in materials by touching, viewing, walking and smelling

A: Crossing multi materials path and challenging vestibular sensation (2–3 min)

11 - Ergonomic gardening

Cognition impairment

Praxis

D: Flower and vegetable bed planters built with ergonomic access for patients either in wheelchairs or with limited mobility

A: Re-visited gardening activities centered on cognitive and functional experience (5–10 min)

12 - Serenity circle

Troublesome & disruptive behaviour

D: Specially designed semi-closed place using light vegetation and vertical wooden bars to offer a safe and harmonious environment that includes a double layer tight canvas producing special effects in interactions with light and shadows

A: Sitting in the middle and interacting visually & mentally with the special scenery (7–10 min)