The rhythm task is an auditory task designed to measure rhythmic perception (Foxton et al., 2006). Subject hears 2 5-note rhythms and is asked to indicate which has an extra gap. The monotonic version (top) uses 1000 Hz tones, while the polytonic version (bottom) presents tones in random pitches from an octave divided into 7 […]
Tag Archives | timing
Causality
This task was designed by Woods et al. (2014). Based on the Shallice (1964) launching experiment, this task measures time dependence in perceiving causation. Subjects view a short video which consists of a blue ball moving toward a red ball, which then moves after a period of 0-267.2 ms, divided in 16.7 ms intervals, creating […]
Timing Tasks
These tasks measure time perception using either visual (Vis100 – top) or auditory perception (Aud100 – middle). For the visual task, two squares appear on the screen in succession. Subjects are asked to indicate which stimulus was shorter. One stimulus is always 6 frames (96 ms), while the other ranges from 7-38 frames (112-608 ms). The same […]
Simultaneity
This task also measures basic visual time perception. This task uses the same parameters as the Vis100 task. However, rather than appear in succession, the stimuli appear simultaneously. One square appears 7-38 frames earlier than the other. Subjects are asked to indicate which stimulus appeared first. Total Items: 39 Completion Time: 8 minutes Dependent Variable: Number […]
Time, Causality, and Perception (TCP)
Basic Research Questions 1. How does the perception of time influence the attributions of causality in physical and social interaction? 2. Can stimulation of the frontal cortex using Transcranial Direct Stimulation (TDCS), and subsequent cognitive behavioral training alter the perception of temporal coincidence and by extension physical causality attributions in a sustained manner? 3. What are […]
Time Perception Antecedents for Linguistic and Social Cognitive Dysfunction
Basic Research Questions 1. To what extent does auditory time perception contribute to phonemic differentiation and prosodic recognition in healthy individuals? 2. How do impairments in time perception affect phonemic differentiation and prosodic recognition in schizophrenia? Language and social cognitive impairment figure prominently in schizophrenia psychopathology and are linked to both positive as well as […]
Rhythm and Amusia in Schizophrenia
Basic Research Questions 1. Do schizophrenia patients’ rhythmic performances vary in the presence of tonal changes within rhythmic sequences? 2. Would such rhythmic performance variations themselves vary by the subjects’ pitch perception acuity? 3. Does rhythmic performance contribute to schizophrenia dysprosodia? Perceiving social intent via vocal intonation (prosody) is profoundly impaired in schizophrenia. Recent studies […]
Prosody-Centric Neuropsychological Connectome
Basic Research Questions 1. How do deficits in auditory and language abilities relate to prosody perception across different diagnoses? 2. Which neuropathic mechanisms impair prosodic perception in schizophrenia and how are these different from other diagnoses? 3. What are the optimal targets for treatment interventions to improve social communication impairments? Dysprodia, which is impairment in […]
