A researcher is investigating the effects of a new drug on neural communication. They observe that the drug primarily influences the activity of dopamine and serotonin in the brain, leading to a range of effects on mood, sleep, and appetite. Based on this information, which of the following best describes the drug’s mechanism of action?
The drug acts as an excitatory neurotransmitter, increasing the likelihood of action potentials in postsynaptic neurons.
The drug functions as a neuromodulator, influencing brain activity through a variety of effects on different neural pathways.
The drug acts as an inhibitory neurotransmitter, decreasing the likelihood of action potentials in postsynaptic neurons.
The drug selectively enhances the effects of glutamate while blocking the effects of GABA.
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Create Free Account Log inThis is a free VCE Units 3 & 4 Psychology practice question worth 1 mark, testing your understanding of Neurotransmitters vs neuromodulators. It falls under How does the nervous system enable psychological functioning? in Unit 3: How does experience affect behaviour and mental processes?. Submit your answer above to receive instant AI-powered marking and personalised feedback.
In this unit students investigate the contribution that classical and contemporary research has made to the understanding of the functioning of the nervous system and to the understanding of the biological, psychological and social factors that influence learning and memory. Students examine how the human nervous system enables a person to interact with the world around them and explore how stress may affect a person’s psychological functioning. Students investigate how mechanisms of learning and memory lead to the acquisition of knowledge and the development of new and changed behaviours. A student-designed scientific investigation involving the generation of primary data related to mental processes and psychological functioning may be undertaken in either Unit 3 or Unit 4, or across both Units 3 and 4, and is assessed in Unit 4 Outcome 3.
In this area of study students explore the role of different subdivisions of the nervous system in enabling a person to integrate, coordinate and respond to internal and external stimuli. Students examine neurotransmitters and neuromodulators in the transmission of neural information. They investigate stress as a psychobiological process and consider the ways in which stress can affect psychological functioning. Students explore models that describe stress and consider strategies for coping with stress and improving mental wellbeing.
the role of neurotransmitters in the transmission of neural information across a neural synapse to produce excitatory effects (as with glutamate) or inhibitory effects (as with gamma-amino butyric acid [GABA]) as compared to neuromodulators (such as dopamine and serotonin) that have a range of effects on brain activity
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