A Review of EEG and fMRI Measuring Aesthetic Processing in Visual User Experience Research

Towards in vivo photoacoustic human imaging: Shining a new light on clinical diagnostics

Multiscale visualization of human anatomical structures is revolutionizing clinical diagnosis and treatment. As one of the most promising clinical diagnostic techniques, photoacoustic imaging (PAI), or optoacoustic imaging, bridges the spatial-resolution gap between pure optical and ultrasonic imaging techniques, by the modes of optical illumination and acoustic detection. PAI can non-invasively capture multiple optical contrasts from the endogenous agents such as oxygenated/deoxygenated hemoglobin, lipid and melanin or a variety of exogenous specific biomarkers to reveal anatomy, function, and molecular for biological tissues in vivo, showing significant potential in clinical diagnostics. In 2001, the worldwide first clinical prototype of the photoacoustic system was used to screen breast cancer in vivo, which opened the prelude to photoacoustic clinical diagnostics. Over the past two decades, PAI has achieved monumental discoveries and applications in human imaging. Progress towards preclinical/clinical applications includes breast, skin, lymphatics, bowel, thyroid, ovarian, prostate, and brain imaging, etc., and there is no doubt that PAI is opening new avenues to realize early diagnosis and precise treatment of human diseases. In this review, the breakthrough researches and key applications of photoacoustic human imaging in vivo are emphatically summarized, which demonstrates the technical superiorities and emerging applications of photoacoustic human imaging in clinical diagnostics, providing clinical translational orientations for the photoacoustic community and clinicians. The perspectives on potential improvements of photoacoustic human imaging are finally highlighted.

The "Creativity Crisis" as a Mind in Crisis: A Cultural-Historical Activity Theory Position

Creativity is considered a global ability and crucial for ordinary-daily and special (e.g., science, aesthetic) activities. In this paper, from the position of Cultural-Historical Activity Theory (CHAT), we expand the debate about the creativity crisis and hypothesize that the noted crisis is only the tip of the iceberg represented by the crisis of the postmodern' incoherent mind, reflecting the crisis of self-realization as a leading activity in the individualistic epoch. By investigating creativity as an original functionality of the mind, two key titles are stressed. One is the halting of the activity system; two, it is the inconsistency between the objective meanings sphere and the subjective sense-making sphere. Both titles represent the epistemological rupture embedded in the mainstream culture and praxis rooted in the internal contradictions of individualism and post-modernism as worldview and practices, leading the mind to close its eyes on the contradictions which are the crucial source of grasping the internal content (abstraction and generalization) of the given experience, hence, a crucial source of creativity. Thus, it is considered that not only creativity is in crisis, but also the coherence of the mind as well, as an extreme result of the shattered postmodern existence.

Brain-computer interface to predict impulse buying behavior using functional near-infrared spectroscopy

As the rate of vaccination against COVID-19 is increasing, demand for overseas travel is also increasing. Despite people's preference for duty-free shopping, previous studies reported that duty-free shopping increases impulse buying behavior. There are also self-reported tools to measure their impulse buying behavior, but it has the disadvantage of relying on the human memory and perception. Therefore, we propose a Brain-Computer Interface (BCI)-based brain signal processing methodology to supplement these limitations and to reduce ambiguity and conjecture of data. To achieve this goal, we focused on the brain's prefrontal cortex (PFC) activity, which supervises human decision-making and is closely related to impulse buying behavior. The PFC activation is observed by recording signals using a functional near-infrared spectroscopy (fNIRS) while inducing impulse buying behavior in virtual computing environments. We found that impulse buying behaviors were not only higher in online duty-free shops than in online regular stores, but the fNIRS signals were also different on the two sites. We also achieved an average accuracy of 93.78% in detecting impulse buying patterns using a support vector machine. These results were identical to the people's self-reported responses. This study provides evidence as a potential biomarker for detecting impulse buying behavior with fNIRS.