How does a lesion in the right hemisphere typically manifest in right-handed individuals?

In right-handed individuals, lesions in the right hemisphere often lead to a loss of non-verbal cognitive functions. The right hemisphere of the brain is primarily responsible for processing spatial and non-verbal information, as well as understanding emotions, facial expressions, and social cues. Consequently, when there is damage to the right hemisphere, individuals may struggle with tasks that require these non-verbal abilities, such as interpreting body language, recognizing faces, or engaging in certain forms of artistic or creative expression.

This loss can manifest as difficulties in appreciating non-verbal communication or understanding the emotional undertones in a conversation. The right hemisphere plays a critical role in synthesizing information that is essential for social interaction, and any impairment here can significantly impact a person's ability to connect with others on a non-verbal level.

In contrast, the other options do not accurately reflect the typical consequences of right hemisphere lesions in right-handed individuals. Lesions typically do not enhance visual processing skills or increase emotional connectivity; rather, they often impair the ability to process complex visual and emotional information. Expressive dysphasia, which involves issues with language production, is more commonly associated with lesions in the left hemisphere, particularly in the regions associated with language functions, such as Broca's area.