Systems and methods for facilitating product preferences and/or product recommendations are disclosed. Biometric data of the subject are taken into account by the systems and methods in order to determine product preferences and/or product recommendations. Other factors of the subject, although optional, may be also taken into account while determining product preferences and/or product recommendations for a subject. These product preferences or recommendations can be presented to the subject, either automatically via a display device or with assistance from a product consultant. To obtain the biometric data, the subject will be exposed to a number of stimuli, such as fragrance/scent stimuli. Biometric data will then be collected from the subject based on her response to this fragrance/scent stimuli. In some examples, the collected biometric data relates to a subject's event-related potential (ERP)—the measured brain response that is the direct result of a specific sensory, cognitive, or motor event.

A psychological condition estimation system includes an acquisition unit and an estimation unit. The acquisition unit acquires information about respective activity levels of a plurality of sensory areas of a subject's brain. The estimation unit estimates a sense, which is highly related to the subject's psychological condition, out of a plurality of types of senses corresponding respectively to the plurality of sensory areas, based on the information, acquired by the acquisition unit, about the activity levels of the plurality of sensory areas when the subject is exposed to multiple types of stimuli.

A psychological condition estimation system includes an acquisition unit and an estimation unit. The acquisition unit acquires information about respective activity levels of a plurality of sensory areas of a subject's brain. The estimation unit estimates a sense, which is highly related to the subject's psychological condition, out of a plurality of types of senses corresponding respectively to the plurality of sensory areas, based on the information, acquired by the acquisition unit, about the activity levels of the plurality of sensory areas when the subject is exposed to multiple types of stimuli.

An easily manageable device and a method used as an early warning system would be desirable. The device should be usable at virtually any location and operable with little proficiency, and it should be sterilizable, resource-saving and inexpensive. This is achieved by the following: an attachment for the head of a person, the attachment coupled to a first control unit (T) and comprising electrodes (E.sub.1 to E.sub.4) for receiving cerebral electrical activity or brain potentials, wherein the electrodes lead to the first control unit (T). The first control unit (T) has a microprocessor which is capable of recording signals from the electrodes (E.sub.1 to E.sub.4) in a time-related manner via an analog-to-digital converter. The first control unit (T) is coupled to or actuates an actuator element (A.sub.1), which is capable of releasing (LDZ.sub.1) a fragrance in pulses as a stimulus in a flow from at least one pressurized cartridge (K.sub.1). The signals of the electrodes (E.sub.1 to E.sub.4) have an EEG signal level in order to record (FIG. 5, FIG. 6) a group of chemosensorically-evoked potentials or at least the chemosensorically-influenced temporal sections thereof in a time-related manner and to analyze them - preferably not on the human head.

An easily manageable device and a method used as an early warning system would be desirable. The device should be usable at virtually any location and operable with little proficiency, and it should be sterilizable, resource-saving and inexpensive. This is achieved by the following: an attachment for the head of a person, the attachment coupled to a first control unit (T) and comprising electrodes (E.sub.1 to E.sub.4) for receiving cerebral electrical activity or brain potentials, wherein the electrodes lead to the first control unit (T). The first control unit (T) has a microprocessor which is capable of recording signals from the electrodes (E.sub.1 to E.sub.4) in a time-related manner via an analog-to-digital converter. The first control unit (T) is coupled to or actuates an actuator element (A.sub.1), which is capable of releasing (LDZ.sub.1) a fragrance in pulses as a stimulus in a flow from at least one pressurized cartridge (K.sub.1). The signals of the electrodes (E.sub.1 to E.sub.4) have an EEG signal level in order to record (FIG. 5, FIG. 6) a group of chemosensorically-evoked potentials or at least the chemosensorically-influenced temporal sections thereof in a time-related manner and to analyze them - preferably not on the human head.

There is provided a data processing device and a data processing method capable of customizing a dish made by a cooking robot according to a preference of a person who eats the dish. The data processing device (11) according to one aspect of the present technology generates recipe data including a data set used when a cooking robot (1) performs a cooking operation, the data set linking cooking operation data in which information regarding an ingredient of a dish and information regarding an operation of a cook in a cooking process using the ingredient are described, and cook biological data indicating a biological reaction of the cook measured in conjunction with progress of the cooking process. The present technology can be applied to a computer that controls cooking in a cooking robot.

There is provided a data processing device and a data processing method capable of customizing a dish made by a cooking robot according to a preference of a person who eats the dish. The data processing device (11) according to one aspect of the present technology generates recipe data including a data set used when a cooking robot (1) performs a cooking operation, the data set linking cooking operation data in which information regarding an ingredient of a dish and information regarding an operation of a cook in a cooking process using the ingredient are described, and cook biological data indicating a biological reaction of the cook measured in conjunction with progress of the cooking process. The present technology can be applied to a computer that controls cooking in a cooking robot.

Techniques are disclosed for detecting knowledge based on brainwave response to external stimulation. A subject can be exposed to stimuli and brainwave responses indicating a p-300 signal can be detected. Further stimuli or sequences of stimuli can be selected be presented to the subject based on the category correlated with the stimuli that indicate a p-300 response.

Techniques are disclosed for detecting knowledge based on brainwave response to external stimulation. A subject can be exposed to stimuli and brainwave responses indicating a p-300 signal can be detected. Further stimuli or sequences of stimuli can be selected be presented to the subject based on the category correlated with the stimuli that indicate a p-300 response.

In an aspect of the invention, a method of identifying sensory inputs affecting working memory load of an individual is provided. The method comprises monitoring (S101) working memory load of the individual using a sensor device, detecting (S102) an increase in the working memory load of the individual, and identifying (S103), in response to the detected increase, at least one sensory input affecting the working memory load of the individual.