Final answer:
Babies elicit emotions in a positive or negative way based on their temperament and environmental experiences, being influenced by both natural tendencies and conditioning throughout their development. There isn't a specific age when they will react solely in a positive or negative manner; this is a continuous learning process.
Step-by-step explanation:
Babies can elicit emotions in a positive or negative way based on a variety of factors, including basic temperament, experiences, and the reactions of caregivers. From an early age, a baby's temperament can greatly influence their behavior and how others respond to them. Babies with easy temperaments often demonstrate positive emotions, adapt readily to change, and are good at self-regulation, generally eliciting positive responses from caregivers. On the other hand, those with more difficult temperaments might show negative emotions more frequently and have a harder time adapting and regulating their emotions, which might sometimes lead to less positive interactions with caregivers.
Emotional responses can also be shaped through classical conditioning as seen in everyday life. Positive conditioning, such as associating a smile or hug with feelings of happiness or security, can prompt babies to react positively. Negative conditioning, like associating loud noises with fear, can result in babies expressing negative emotions.
The specific age at which a baby will only elicit emotions in a positive or negative way is variable and can be influenced by the mentioned factors. It is also an ongoing process where babies learn from their environment and experiences throughout their development.