Verbal fluency tasks have been widely used to evaluate language and executive control processes in the human brain. FMRI studies of verbal fluency, however, have used either silent word generation (which provides no behavioral measure) or cued generation of single words in order to contend with speech-related motion artifacts. In this study, we use a recently developed paradigm design to investigate the neural correlates of verbal fluency during overt, free recall, word generation so that performance and brain activity could be evaluated under conditions that more closely mirror standard behavioral test demands. We investigated verbal fluency to both letter and category cues in order to evaluate differential involvement of specific frontal and temporal lobe sites as a function of retrieval cue type, as suggested by previous neuropsychological and neuroimaging investigations. In addition, we incorporated both a task switching manipulation and an automatic speech condition in order to modulate the demand placed on executive functions. We found greater activation in the left hemisphere during category and letter fluency tasks, and greater right hemisphere activation during automatic speech. We also found that letter and category fluency tasks were associated with differential involvement of specific regions of the frontal and temporal lobes. These findings provide converging evidence that letter and category fluency performance is dependent on partially distinct neural circuitry. They also provide strong evidence that verbal fluency can be successfully evaluated in the MR environment using overt, self-paced, responses.
Prior studies suggest that autism spectrum disorders (ASD) are associated with a domain-specific memory impairment for faces. The underlying cause of this problem and its relation to impaired visual scanning of faces—particularly of the eyes—remains to be determined. We recorded eye movements while 22 high-functioning ASD and 21 typically developing (TD) adolescents encoded and later recognized faces and objects from a single, nonsocial object category (electric fans). Relative to TD subjects, ASD individuals had poorer memory for faces, but not fans. Correlational analyses showed significant relationships between recognition memory and fixations. Eye tracking during encoding revealed that TD subjects made more fixations to faces than fans, whereas ASD individuals did not differ in number of fixations made to each stimulus type. Moreover, although both the TD and ASD groups showed a strong preference for fixating the eyes more than the mouth, the ASD subjects were less likely than TD subjects to scan regions of the face outside of the primary facial features (i.e., eyes, nose, and mouth). We concluded that ASD individuals have a domain-specific memory impairment for faces relative to mechanical objects and that this impairment may be related to abnormal scanning during encoding.
In response to the coronavirus disease 2019 (COVID-19) pandemic, our NYU Langone Health Tisch/Kimmel/Orthopedic Hospital Consultation-Liaison (CL) Psychiatry service underwent a multifaceted transformation to become a primarily Virtual CL Psychiatry service. We aimed to provide the hospital system with comprehensive psychiatric consultation for all patients, regardless of isolation status, while preserving personal protective equipment and avoiding unnecessary exposure to COVID-19 for our team members. In this article, we discuss harnessing technology for video consultations and transforming the multiple facets of an academic CL Psychiatry Service to become a comprehensive, functioning virtual consultation team during the COVID-19 pandemic. We review the history, best practices, legal, and regulatory considerations of using telepsychiatry for psychiatric consultations, challenges to implementation across multiple clinical sites, and expansion of the liaison role to include support of frontline colleagues. Finally, we provide the physician, trainee, and psychiatric nurse perspective as it relates to this transition.
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Psychiatr Ann
. 2020;50(7):279–287.]
Health care workers are on the front lines of the recent pandemic, facing significant challenges to their physical and mental health. This article details the efforts undertaken by a health care system and two academically affiliated hospital systems to provide emotional support to their frontline staff. The multipronged approach describes coordinating efforts to decrease duplication of services and to increase centralization of information. This included enhancing pathways for faculty, staff, and trainees to obtain individual and group treatment and to have access to high-quality self-help resources. Continuous feedback has been elicited to ensure that efforts are consistent with expressed needs and in turn services undergo modifications as needed. This article seeks to provide an overview of how one health system has thus far approached the important issue of staff support as well as the challenges experienced and lessons learned along the way.
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Psychiatr Ann
. 2020;50(7):288–294.]
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