Within fMRI methodology, there are two different ways that are typically employed to present stimuli. One method is a block<unk>  design, in which two or more different conditions are alternated in order to determine the differences between the two conditions, or a control may be included in the presentation occurring between the two conditions. By contrast,<unk><unk>  designs are not presented in a set sequence; the presentation is randomized and the time in between stimuli can vary.<unk>  attempts to model the change in fMRI signal in response to neural<unk> s associated with behavioral trials. According to D'Esposito,<unk><unk>  fMRI has the potential to address a number of cognitive psychology questions with a degree of inferential and statistical power not previously available." Each trial can be composed of one experimentally controlled (such as the presentation of a word or picture) or a participant mediated<unk> " (such as a motor response). Within each trial, there are a number of<unk> s such as the presentation of a stimulus, delay period, and response. If the experiment is properly set up and the different<unk> s are timed correctly,<unk>  allows a person to observe the differences in neural activity associated with each<unk> .
Event-related functional magnetic resonance imaging
Amplitude integrated electroencephalography
Event-related potential
Psychomotor vigilance task
Quantitative electroencephalography
Integrated cognitive assessment
Steady state visually evoked potential
Luria-Nebraska neuropsychological battery