Reaction Time by Age Group

import matplotlib.pyplot as plt
import numpy as np

np.random.seed(42)

# Reaction time data
age_groups = ['18-25', '26-35', '36-45', '46-55', '56-65', '65+']
visual_rt = np.array([215, 225, 245, 268, 295, 335])
auditory_rt = np.array([180, 188, 205, 225, 250, 285])
visual_err = np.array([18, 20, 22, 25, 30, 38])
auditory_err = np.array([15, 16, 18, 22, 28, 35])

fig, ax = plt.subplots(figsize=(10, 6), facecolor='#ffffff')
ax.set_facecolor('#ffffff')

x = np.arange(len(age_groups))

ax.errorbar(x, visual_rt, yerr=visual_err, fmt='o-', color='#4927F5',
            ecolor='#4927F5', elinewidth=2, capsize=5, markersize=10,
            markeredgecolor='#1f2937', linewidth=2.5, label='Visual Stimulus', alpha=0.9)
ax.fill_between(x, visual_rt - visual_err, visual_rt + visual_err, 
                color='#4927F5', alpha=0.15)

ax.errorbar(x, auditory_rt, yerr=auditory_err, fmt='s-', color='#F5276C',
            ecolor='#F5276C', elinewidth=2, capsize=5, markersize=9,
            markeredgecolor='#1f2937', linewidth=2.5, label='Auditory Stimulus', alpha=0.9)
ax.fill_between(x, auditory_rt - auditory_err, auditory_rt + auditory_err, 
                color='#F5276C', alpha=0.15)

ax.set_xlabel('Age Group', fontsize=11, color='#374151', fontweight='500')
ax.set_ylabel('Reaction Time (ms)', fontsize=11, color='#374151', fontweight='500')
ax.set_title('Reaction Time by Age and Stimulus Type', fontsize=14, 
             color='#1f2937', fontweight='bold', pad=15)

ax.set_xticks(x)
ax.set_xticklabels(age_groups)
ax.legend(facecolor='#f8fafc', edgecolor='#d1d5db', fontsize=10)
ax.tick_params(colors='#6b7280', labelsize=9)
ax.set_ylim(140, 400)
ax.grid(True, alpha=0.3, color='#d1d5db')
for spine in ax.spines.values():
    spine.set_color('#d1d5db')

plt.tight_layout()
plt.show()