Maternal Dopamine Brain Remodeling Simulator

Maternal Experience Preset Scenarios

Dopamine Surge Intensity 85%

Basal (0%) Physiological Max (100%)

Pulse Duration (Hours) 24h

1h Transient 24h Standard 48h Extended

⚡ Neural Circuit Remodeling Map (VTA ➔ mPOA, NAc, PFC)

VTA Dopamine Source Primary Target (mPOA)

💡 Interactive Hint: Click nodes to inspect plasticity status or drag to reorient circuit morphology. Node: mPOA (Active)

📊 Quantitative Circuit Metrics

mPOA-VTA Synaptic Strength

0.88

Norm range: 0.20 - 1.00

Synaptic Density Gain

+142%

Dendritic spine remodeling

Maternal Responsiveness

94 / 100

Caregiving Index

Transcriptional Persistence

0.91

Epigenetic Stability Score

🐁 Behavioral Pup-Retrieval Trial Lab

mPOA Driven

Simulate maternal behavior response when neonates emit ultrasonic distress calls. Higher VTA-mPOA connectivity accelerates retrieval.

Retrieval Latency: 18.4 seconds

Maternal Memory Horizon: > 120 Days

🧬 Key Transcriptional Factor Expression Levels

ΔFosB (Persistent Plasticity Factor) 8.9x

BDNF (Neurotrophin Spine Growth) 7.4x

Egr1 (Immediate Early Gene) 6.8x

Drd1 (Dopamine D1 Receptor) 8.1x

🔬 Observed Research Summary Nature 2026 Reference Model

Postpartum dopamine surges induce long-lasting structural remodeling in the VTA➔mPOA maternal circuit. High ∆FosB transcription stabilizes synaptic density increases (+142%) and maintains a high maternal responsiveness index (94/100).