The first month: stimulus seeking by your baby
The second month: creating stimulating experiences with your baby
The third month: repetition and novelty with your baby
The fourth month: the impact of communicating with your baby
The fifth month: exploring and discovering with your baby
The sixth month: being social and interactive with your baby
The seventh month: observing more independence in your baby
The eighth month: strengthening object permanence with your baby
The ninth month: the mutual sharing of mental and emotional interactions with your baby
The tenth month: emotional attunement with your baby
The eleventh month: imagining stories with your baby
The twelfth month: learning about cause and effect with your baby
Looking forward: research on secure and insecure attachments.