Negative symptoms refer to a reduction or absence of normal behaviors and functions that are typically present in healthy individuals. These symptoms can include diminished emotional expression, reduced motivation and pleasure, decreased speech output, and social withdrawal.
Related terms
Avolition: Avolition is a related term that refers specifically to the loss of motivation and ability to initiate or persist in goal-directed activities.
Alogia: Alogia is another related term that describes the decrease in spontaneous speech production or the content of speech.
Anhedonia: Anhedonia refers to the inability to experience pleasure or enjoyment from previously pleasurable activities.