Hemispatial Neglect — Interactions Between Attentional Networks and Their Influence on Perception
Citation(s)
Corbetta M, Patel G, Shulman GL The reorienting system of the human brain: from environment to theory of mind. Neuron. 2008 May 8;58(3):306-24. doi: 10.1016/j.neuron.2008.04.017. Review.
Corbetta M, Shulman GL Control of goal-directed and stimulus-driven attention in the brain. Nat Rev Neurosci. 2002 Mar;3(3):201-15. Review.
Corbetta M, Shulman GL Spatial neglect and attention networks. Annu Rev Neurosci. 2011;34:569-99. doi: 10.1146/annurev-neuro-061010-113731. Review.
Sack AT Using non-invasive brain interference as a tool for mimicking spatial neglect in healthy volunteers. Restor Neurol Neurosci. 2010;28(4):485-97. doi: 10.3233/RNN-2010-0568. Review.
Interactions Between Attentional Networks and Their Influence on Perception: a Project in Healthy Subjects and Hemispatial Neglect Patients
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
