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In this paper, the brain potential changes caused by touching fabrics for handle evaluation were recorded by event related potential (ERP) method, compared with subjective evaluation scores and physical index of KES, explore the cognitive mechanism of the transformation of tactile sensation into neural impulses triggered by subtle mechanical stimuli such as material, texture, density and morphology in fabrics. By combining subjective evaluation of fabric tactile sensation, objective physical properties of fabrics and objective neurobiological signals, explore the neurophysiological mechanism of tactile cognition and the signal characteristics and time process of tactile information processing.

The ERP technology was first proposed by a British psychologist named Grey Walter. It is an imaging technique of noninvasive brain cognition, whose potential changes are related to the human physical and mental activities. ERP is different from electroencephalography (EEG) and evoked potentials (EP) on the fact that it cannot only record stimulated physical information which is transmitted to brain, but also response to the psychological activities which related to attention, identification, comparison, memory, judgment and cognition as well as to human’s neural physiological changes which are caused by cognitive process of the feeling by stimulation.

According to potential changes in the cerebral cortex evoked by touching four types of silk fabrics, human brain received the physical stimulation in the early stage (50 ms) of fabrics handle evaluation, and the P50 component amplitude showed negative correlation with fabric smoothness sensations. Around 200 ms after tactile stimulus onset, the amplitude of P200 component show positive correlation with the softness sensation of silk fabrics. The relationship between the amplitude of P300 and the sense of smoothness and softness need further evidence to proof.

In this paper, the brain potential changes caused by touching fabrics for handle evaluation were recorded by event related potential (ERP) method, compared with subjective evaluation scores and physical index of KES, the results shown that the maximum amplitude of P50 component evoked by fabric touching is related to the fabrics’ smoothness and roughness emotion, which means in the early stage processing of tactile sensation, the rougher fabrics could arouse more attention. In addition, the amplitude of P200 component shows positive correlation with the softness sensation of silk fabrics.

The purpose of this paper is to discuss the motivations behind the accession of Latin American countries to the Asian Infrastructure Investment Bank (AIIB) with a focus on the cases of Brazil and Chile.

The author collected data using a case study methodology, primarily through semi-structured interviews with decision-makers and through official government documentation.

The findings identified that, overall, the Brazilian politicians who made the decision to join the bank had an unclear perception of its economic benefit and believed that the clearest benefit from accession is political (to support China's initiative). After years of domestic political turmoil and economic crisis, Brazil experienced delayed incorporation into the bank, slow ratification processes in the domestic arena and a reduction in its capital commitment. Chilean decision-makers, on the other hand, seemed to have a clearer idea of the benefits from accessing the bank, which explains that their ratification process has been faster and smoother. Yet, a surprising socio-political crisis delayed incorporation into the bank. Both countries have delayed their accession to the bank due to domestic crises.

Three policy implications can be drawn from this study. First, the entry of Latin American countries into the bank reflects the persuasiveness of Chinese diplomacy in this region. Second, the author finds that interviewees are not always able to differentiate the AIIB from the Belt and Road Initiative (BRI) and hold the misguided idea that the AIIB is subordinated to the BRI rather than complementary to it. This might set overly high expectations of the benefits of entering the AIIB. Third, the author foresees that the largest potential of the AIIB in Latin America lies in the possibility of participating in co-financed projects, in particular with the Inter-American Development Bank and the Development Bank of Latin America.

Research on the AIIB has boomed in recent years, yet there are few in-depth studies about Latin American prospective members. The value of this study lies in offering in-depth data for two of the eight prospective members from this region.